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Finding the Fourth Proportional to 5,332.60, 7,998.90 and 2,999.80

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Solution

The fourth proportional to 5,332.60, 7,998.90 and 2,999.80 is: 4,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,332.60 : 7,998.90 = 2,999.80 : x
  2. Step 2: Convert to fraction form
    5,332.60/7,998.90 = 2,999.80/x
  3. Step 3: Cross multiply
    5,332.60x = 7,998.90 × 2,999.80
  4. Step 4: Simplify right side
    5,332.60x = 23,995,100.22
  5. Step 5: Solve for x
    x = 23,995,100.22/5,332.60
  6. Step 6: Final answer
    x = 4,499.70

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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.