Home / 3,115.70-4,677.60-2,500.10

Finding the Fourth Proportional to 3,115.70, 4,677.60 and 2,500.10

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Solution

The fourth proportional to 3,115.70, 4,677.60 and 2,500.10 is: 3,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.70 : 4,677.60 = 2,500.10 : x
  2. Step 2: Convert to fraction form
    3,115.70/4,677.60 = 2,500.10/x
  3. Step 3: Cross multiply
    3,115.70x = 4,677.60 × 2,500.10
  4. Step 4: Simplify right side
    3,115.70x = 11,694,467.76
  5. Step 5: Solve for x
    x = 11,694,467.76/3,115.70
  6. Step 6: Final answer
    x = 3,753.40

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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.