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Finding the Fourth Proportional to 2,951.60, 4,063.92 and 2,508.80

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Solution

The fourth proportional to 2,951.60, 4,063.92 and 2,508.80 is: 3,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.60 : 4,063.92 = 2,508.80 : x
  2. Step 2: Convert to fraction form
    2,951.60/4,063.92 = 2,508.80/x
  3. Step 3: Cross multiply
    2,951.60x = 4,063.92 × 2,508.80
  4. Step 4: Simplify right side
    2,951.60x = 10,195,562.50
  5. Step 5: Solve for x
    x = 10,195,562.50/2,951.60
  6. Step 6: Final answer
    x = 3,454.25

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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.