Home / 2,338.62-3,227.24-1,290.70

Finding the Fourth Proportional to 2,338.62, 3,227.24 and 1,290.70

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Solution

The fourth proportional to 2,338.62, 3,227.24 and 1,290.70 is: 1,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.62 : 3,227.24 = 1,290.70 : x
  2. Step 2: Convert to fraction form
    2,338.62/3,227.24 = 1,290.70/x
  3. Step 3: Cross multiply
    2,338.62x = 3,227.24 × 1,290.70
  4. Step 4: Simplify right side
    2,338.62x = 4,165,398.67
  5. Step 5: Solve for x
    x = 4,165,398.67/2,338.62
  6. Step 6: Final answer
    x = 1,781.14

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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.