Home / 2,446.38-3,376.08-1,398.78

Finding the Fourth Proportional to 2,446.38, 3,376.08 and 1,398.78

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Solution

The fourth proportional to 2,446.38, 3,376.08 and 1,398.78 is: 1,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.38 : 3,376.08 = 1,398.78 : x
  2. Step 2: Convert to fraction form
    2,446.38/3,376.08 = 1,398.78/x
  3. Step 3: Cross multiply
    2,446.38x = 3,376.08 × 1,398.78
  4. Step 4: Simplify right side
    2,446.38x = 4,722,393.18
  5. Step 5: Solve for x
    x = 4,722,393.18/2,446.38
  6. Step 6: Final answer
    x = 1,930.36

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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.