Home / 1,031.18-1,423.08-589.05

Finding the Fourth Proportional to 1,031.18, 1,423.08 and 589.05

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Solution

The fourth proportional to 1,031.18, 1,423.08 and 589.05 is: 812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.18 : 1,423.08 = 589.05 : x
  2. Step 2: Convert to fraction form
    1,031.18/1,423.08 = 589.05/x
  3. Step 3: Cross multiply
    1,031.18x = 1,423.08 × 589.05
  4. Step 4: Simplify right side
    1,031.18x = 838,265.27
  5. Step 5: Solve for x
    x = 838,265.27/1,031.18
  6. Step 6: Final answer
    x = 812.92

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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.