Home / 1,031.26-1,423.11-589.12

Finding the Fourth Proportional to 1,031.26, 1,423.11 and 589.12

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Solution

The fourth proportional to 1,031.26, 1,423.11 and 589.12 is: 812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.26 : 1,423.11 = 589.12 : x
  2. Step 2: Convert to fraction form
    1,031.26/1,423.11 = 589.12/x
  3. Step 3: Cross multiply
    1,031.26x = 1,423.11 × 589.12
  4. Step 4: Simplify right side
    1,031.26x = 838,382.56
  5. Step 5: Solve for x
    x = 838,382.56/1,031.26
  6. Step 6: Final answer
    x = 812.97

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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.