Home / 1,165.08-1,747.28-424.56

Finding the Fourth Proportional to 1,165.08, 1,747.28 and 424.56

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Solution

The fourth proportional to 1,165.08, 1,747.28 and 424.56 is: 636.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.08 : 1,747.28 = 424.56 : x
  2. Step 2: Convert to fraction form
    1,165.08/1,747.28 = 424.56/x
  3. Step 3: Cross multiply
    1,165.08x = 1,747.28 × 424.56
  4. Step 4: Simplify right side
    1,165.08x = 741,825.20
  5. Step 5: Solve for x
    x = 741,825.20/1,165.08
  6. Step 6: Final answer
    x = 636.72

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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.