Home / 3,915.20-5,402.97-2,343.66

Finding the Fourth Proportional to 3,915.20, 5,402.97 and 2,343.66

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Solution

The fourth proportional to 3,915.20, 5,402.97 and 2,343.66 is: 3,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.20 : 5,402.97 = 2,343.66 : x
  2. Step 2: Convert to fraction form
    3,915.20/5,402.97 = 2,343.66/x
  3. Step 3: Cross multiply
    3,915.20x = 5,402.97 × 2,343.66
  4. Step 4: Simplify right side
    3,915.20x = 12,662,724.67
  5. Step 5: Solve for x
    x = 12,662,724.67/3,915.20
  6. Step 6: Final answer
    x = 3,234.25

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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.