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Finding the Fourth Proportional to 5,086.60, 7,008.50 and 4,088.20

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Solution

The fourth proportional to 5,086.60, 7,008.50 and 4,088.20 is: 5,632.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.60 : 7,008.50 = 4,088.20 : x
  2. Step 2: Convert to fraction form
    5,086.60/7,008.50 = 4,088.20/x
  3. Step 3: Cross multiply
    5,086.60x = 7,008.50 × 4,088.20
  4. Step 4: Simplify right side
    5,086.60x = 28,652,149.70
  5. Step 5: Solve for x
    x = 28,652,149.70/5,086.60
  6. Step 6: Final answer
    x = 5,632.87

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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.