Home / 3,100.40-4,644.08-2,517.20

Finding the Fourth Proportional to 3,100.40, 4,644.08 and 2,517.20

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Solution

The fourth proportional to 3,100.40, 4,644.08 and 2,517.20 is: 3,770.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.40 : 4,644.08 = 2,517.20 : x
  2. Step 2: Convert to fraction form
    3,100.40/4,644.08 = 2,517.20/x
  3. Step 3: Cross multiply
    3,100.40x = 4,644.08 × 2,517.20
  4. Step 4: Simplify right side
    3,100.40x = 11,690,078.18
  5. Step 5: Solve for x
    x = 11,690,078.18/3,100.40
  6. Step 6: Final answer
    x = 3,770.51

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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.