Home / 5,031.38-7,544.13-1,520.34

Finding the Fourth Proportional to 5,031.38, 7,544.13 and 1,520.34

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Solution

The fourth proportional to 5,031.38, 7,544.13 and 1,520.34 is: 2,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.38 : 7,544.13 = 1,520.34 : x
  2. Step 2: Convert to fraction form
    5,031.38/7,544.13 = 1,520.34/x
  3. Step 3: Cross multiply
    5,031.38x = 7,544.13 × 1,520.34
  4. Step 4: Simplify right side
    5,031.38x = 11,469,642.60
  5. Step 5: Solve for x
    x = 11,469,642.60/5,031.38
  6. Step 6: Final answer
    x = 2,279.62

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1.5x scale

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.