Home / 3,915.38-5,402.22-2,342.36

Finding the Fourth Proportional to 3,915.38, 5,402.22 and 2,342.36

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Solution

The fourth proportional to 3,915.38, 5,402.22 and 2,342.36 is: 3,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.38 : 5,402.22 = 2,342.36 : x
  2. Step 2: Convert to fraction form
    3,915.38/5,402.22 = 2,342.36/x
  3. Step 3: Cross multiply
    3,915.38x = 5,402.22 × 2,342.36
  4. Step 4: Simplify right side
    3,915.38x = 12,653,944.04
  5. Step 5: Solve for x
    x = 12,653,944.04/3,915.38
  6. Step 6: Final answer
    x = 3,231.86

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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.