Home / 5,432.20-8,159.24-5,279.08

Finding the Fourth Proportional to 5,432.20, 8,159.24 and 5,279.08

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Solution

The fourth proportional to 5,432.20, 8,159.24 and 5,279.08 is: 7,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.20 : 8,159.24 = 5,279.08 : x
  2. Step 2: Convert to fraction form
    5,432.20/8,159.24 = 5,279.08/x
  3. Step 3: Cross multiply
    5,432.20x = 8,159.24 × 5,279.08
  4. Step 4: Simplify right side
    5,432.20x = 43,073,280.70
  5. Step 5: Solve for x
    x = 43,073,280.70/5,432.20
  6. Step 6: Final answer
    x = 7,929.25

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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.