Home / 1,487.16-2,233.17-913.68

Finding the Fourth Proportional to 1,487.16, 2,233.17 and 913.68

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Solution

The fourth proportional to 1,487.16, 2,233.17 and 913.68 is: 1,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.16 : 2,233.17 = 913.68 : x
  2. Step 2: Convert to fraction form
    1,487.16/2,233.17 = 913.68/x
  3. Step 3: Cross multiply
    1,487.16x = 2,233.17 × 913.68
  4. Step 4: Simplify right side
    1,487.16x = 2,040,402.77
  5. Step 5: Solve for x
    x = 2,040,402.77/1,487.16
  6. Step 6: Final answer
    x = 1,372.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.