Home / 3,943.46-5,915.20-2,213.30

Finding the Fourth Proportional to 3,943.46, 5,915.20 and 2,213.30

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Solution

The fourth proportional to 3,943.46, 5,915.20 and 2,213.30 is: 3,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.46 : 5,915.20 = 2,213.30 : x
  2. Step 2: Convert to fraction form
    3,943.46/5,915.20 = 2,213.30/x
  3. Step 3: Cross multiply
    3,943.46x = 5,915.20 × 2,213.30
  4. Step 4: Simplify right side
    3,943.46x = 13,092,112.16
  5. Step 5: Solve for x
    x = 13,092,112.16/3,943.46
  6. Step 6: Final answer
    x = 3,319.96

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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.