Home / 2,887.60-4,331.40-2,766.10

Finding the Fourth Proportional to 2,887.60, 4,331.40 and 2,766.10

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Solution

The fourth proportional to 2,887.60, 4,331.40 and 2,766.10 is: 4,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.60 : 4,331.40 = 2,766.10 : x
  2. Step 2: Convert to fraction form
    2,887.60/4,331.40 = 2,766.10/x
  3. Step 3: Cross multiply
    2,887.60x = 4,331.40 × 2,766.10
  4. Step 4: Simplify right side
    2,887.60x = 11,981,085.54
  5. Step 5: Solve for x
    x = 11,981,085.54/2,887.60
  6. Step 6: Final answer
    x = 4,149.15

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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.