Home / 5,207.60-7,791.96-2,887.76

Finding the Fourth Proportional to 5,207.60, 7,791.96 and 2,887.76

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Solution

The fourth proportional to 5,207.60, 7,791.96 and 2,887.76 is: 4,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.60 : 7,791.96 = 2,887.76 : x
  2. Step 2: Convert to fraction form
    5,207.60/7,791.96 = 2,887.76/x
  3. Step 3: Cross multiply
    5,207.60x = 7,791.96 × 2,887.76
  4. Step 4: Simplify right side
    5,207.60x = 22,501,310.41
  5. Step 5: Solve for x
    x = 22,501,310.41/5,207.60
  6. Step 6: Final answer
    x = 4,320.86

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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.