Home / 3,915.65-5,403.76-2,343.44

Finding the Fourth Proportional to 3,915.65, 5,403.76 and 2,343.44

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Solution

The fourth proportional to 3,915.65, 5,403.76 and 2,343.44 is: 3,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.65 : 5,403.76 = 2,343.44 : x
  2. Step 2: Convert to fraction form
    3,915.65/5,403.76 = 2,343.44/x
  3. Step 3: Cross multiply
    3,915.65x = 5,403.76 × 2,343.44
  4. Step 4: Simplify right side
    3,915.65x = 12,663,387.33
  5. Step 5: Solve for x
    x = 12,663,387.33/3,915.65
  6. Step 6: Final answer
    x = 3,234.04

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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.