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Finding the Fourth Proportional to 7,237.55, 9,992.31 and 5,555.75

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Solution

The fourth proportional to 7,237.55, 9,992.31 and 5,555.75 is: 7,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.55 : 9,992.31 = 5,555.75 : x
  2. Step 2: Convert to fraction form
    7,237.55/9,992.31 = 5,555.75/x
  3. Step 3: Cross multiply
    7,237.55x = 9,992.31 × 5,555.75
  4. Step 4: Simplify right side
    7,237.55x = 55,514,726.32
  5. Step 5: Solve for x
    x = 55,514,726.32/7,237.55
  6. Step 6: Final answer
    x = 7,670.38

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Find fourth proportional to 3,618.77, 4,996.16 and 2,777.87
Half scale
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Double scale
Find fourth proportional to 7,238.55, 9,993.69 and 5,556.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.