Home / 5,432.72-8,150.56-2,312.88

Finding the Fourth Proportional to 5,432.72, 8,150.56 and 2,312.88

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Solution

The fourth proportional to 5,432.72, 8,150.56 and 2,312.88 is: 3,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.72 : 8,150.56 = 2,312.88 : x
  2. Step 2: Convert to fraction form
    5,432.72/8,150.56 = 2,312.88/x
  3. Step 3: Cross multiply
    5,432.72x = 8,150.56 × 2,312.88
  4. Step 4: Simplify right side
    5,432.72x = 18,851,267.21
  5. Step 5: Solve for x
    x = 18,851,267.21/5,432.72
  6. Step 6: Final answer
    x = 3,469.95

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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.