Home / 1,037.19-1,431.50-927.27

Finding the Fourth Proportional to 1,037.19, 1,431.50 and 927.27

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Solution

The fourth proportional to 1,037.19, 1,431.50 and 927.27 is: 1,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.19 : 1,431.50 = 927.27 : x
  2. Step 2: Convert to fraction form
    1,037.19/1,431.50 = 927.27/x
  3. Step 3: Cross multiply
    1,037.19x = 1,431.50 × 927.27
  4. Step 4: Simplify right side
    1,037.19x = 1,327,387.01
  5. Step 5: Solve for x
    x = 1,327,387.01/1,037.19
  6. Step 6: Final answer
    x = 1,279.79

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Double scale
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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.