Home / 3,915.88-5,403.54-2,343.76

Finding the Fourth Proportional to 3,915.88, 5,403.54 and 2,343.76

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Solution

The fourth proportional to 3,915.88, 5,403.54 and 2,343.76 is: 3,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.88 : 5,403.54 = 2,343.76 : x
  2. Step 2: Convert to fraction form
    3,915.88/5,403.54 = 2,343.76/x
  3. Step 3: Cross multiply
    3,915.88x = 5,403.54 × 2,343.76
  4. Step 4: Simplify right side
    3,915.88x = 12,664,600.91
  5. Step 5: Solve for x
    x = 12,664,600.91/3,915.88
  6. Step 6: Final answer
    x = 3,234.16

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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.