Home / 6,387.30-8,814.15-3,592.80

Finding the Fourth Proportional to 6,387.30, 8,814.15 and 3,592.80

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Solution

The fourth proportional to 6,387.30, 8,814.15 and 3,592.80 is: 4,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.30 : 8,814.15 = 3,592.80 : x
  2. Step 2: Convert to fraction form
    6,387.30/8,814.15 = 3,592.80/x
  3. Step 3: Cross multiply
    6,387.30x = 8,814.15 × 3,592.80
  4. Step 4: Simplify right side
    6,387.30x = 31,667,478.12
  5. Step 5: Solve for x
    x = 31,667,478.12/6,387.30
  6. Step 6: Final answer
    x = 4,957.88

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1.5x scale

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.