Home / 7,238.09-9,987.98-4,051.22

Finding the Fourth Proportional to 7,238.09, 9,987.98 and 4,051.22

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Solution

The fourth proportional to 7,238.09, 9,987.98 and 4,051.22 is: 5,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.09 : 9,987.98 = 4,051.22 : x
  2. Step 2: Convert to fraction form
    7,238.09/9,987.98 = 4,051.22/x
  3. Step 3: Cross multiply
    7,238.09x = 9,987.98 × 4,051.22
  4. Step 4: Simplify right side
    7,238.09x = 40,463,434.14
  5. Step 5: Solve for x
    x = 40,463,434.14/7,238.09
  6. Step 6: Final answer
    x = 5,590.34

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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.