Home / 5,660.20-8,490.30-3,992.68

Finding the Fourth Proportional to 5,660.20, 8,490.30 and 3,992.68

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Solution

The fourth proportional to 5,660.20, 8,490.30 and 3,992.68 is: 5,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.20 : 8,490.30 = 3,992.68 : x
  2. Step 2: Convert to fraction form
    5,660.20/8,490.30 = 3,992.68/x
  3. Step 3: Cross multiply
    5,660.20x = 8,490.30 × 3,992.68
  4. Step 4: Simplify right side
    5,660.20x = 33,899,051.00
  5. Step 5: Solve for x
    x = 33,899,051.00/5,660.20
  6. Step 6: Final answer
    x = 5,989.02

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Double scale
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Similar ratio
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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.