Home / 3,391.38-4,680.18-2,398.44

Finding the Fourth Proportional to 3,391.38, 4,680.18 and 2,398.44

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Solution

The fourth proportional to 3,391.38, 4,680.18 and 2,398.44 is: 3,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.38 : 4,680.18 = 2,398.44 : x
  2. Step 2: Convert to fraction form
    3,391.38/4,680.18 = 2,398.44/x
  3. Step 3: Cross multiply
    3,391.38x = 4,680.18 × 2,398.44
  4. Step 4: Simplify right side
    3,391.38x = 11,225,130.92
  5. Step 5: Solve for x
    x = 11,225,130.92/3,391.38
  6. Step 6: Final answer
    x = 3,309.90

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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.