Home / 2,417.38-3,335.92-1,422.70

Finding the Fourth Proportional to 2,417.38, 3,335.92 and 1,422.70

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Solution

The fourth proportional to 2,417.38, 3,335.92 and 1,422.70 is: 1,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.38 : 3,335.92 = 1,422.70 : x
  2. Step 2: Convert to fraction form
    2,417.38/3,335.92 = 1,422.70/x
  3. Step 3: Cross multiply
    2,417.38x = 3,335.92 × 1,422.70
  4. Step 4: Simplify right side
    2,417.38x = 4,746,001.49
  5. Step 5: Solve for x
    x = 4,746,001.49/2,417.38
  6. Step 6: Final answer
    x = 1,963.29

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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.