Home / 1,082.26-1,622.17-432.23

Finding the Fourth Proportional to 1,082.26, 1,622.17 and 432.23

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Solution

The fourth proportional to 1,082.26, 1,622.17 and 432.23 is: 647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.26 : 1,622.17 = 432.23 : x
  2. Step 2: Convert to fraction form
    1,082.26/1,622.17 = 432.23/x
  3. Step 3: Cross multiply
    1,082.26x = 1,622.17 × 432.23
  4. Step 4: Simplify right side
    1,082.26x = 701,148.38
  5. Step 5: Solve for x
    x = 701,148.38/1,082.26
  6. Step 6: Final answer
    x = 647.86

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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.