Home / 3,915.18-5,402.94-2,517.96

Finding the Fourth Proportional to 3,915.18, 5,402.94 and 2,517.96

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Solution

The fourth proportional to 3,915.18, 5,402.94 and 2,517.96 is: 3,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.18 : 5,402.94 = 2,517.96 : x
  2. Step 2: Convert to fraction form
    3,915.18/5,402.94 = 2,517.96/x
  3. Step 3: Cross multiply
    3,915.18x = 5,402.94 × 2,517.96
  4. Step 4: Simplify right side
    3,915.18x = 13,604,386.80
  5. Step 5: Solve for x
    x = 13,604,386.80/3,915.18
  6. Step 6: Final answer
    x = 3,474.78

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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.