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Finding the Fourth Proportional to 1,444.76, 1,992.76 and 1,396.54

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Solution

The fourth proportional to 1,444.76, 1,992.76 and 1,396.54 is: 1,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.76 : 1,992.76 = 1,396.54 : x
  2. Step 2: Convert to fraction form
    1,444.76/1,992.76 = 1,396.54/x
  3. Step 3: Cross multiply
    1,444.76x = 1,992.76 × 1,396.54
  4. Step 4: Simplify right side
    1,444.76x = 2,782,969.05
  5. Step 5: Solve for x
    x = 2,782,969.05/1,444.76
  6. Step 6: Final answer
    x = 1,926.25

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Half scale
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Double scale
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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.