Home / 1,154.34-1,731.68-424.94

Finding the Fourth Proportional to 1,154.34, 1,731.68 and 424.94

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Solution

The fourth proportional to 1,154.34, 1,731.68 and 424.94 is: 637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.34 : 1,731.68 = 424.94 : x
  2. Step 2: Convert to fraction form
    1,154.34/1,731.68 = 424.94/x
  3. Step 3: Cross multiply
    1,154.34x = 1,731.68 × 424.94
  4. Step 4: Simplify right side
    1,154.34x = 735,860.10
  5. Step 5: Solve for x
    x = 735,860.10/1,154.34
  6. Step 6: Final answer
    x = 637.47

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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.