Home / 2,799.39-3,863.08-1,540.45

Finding the Fourth Proportional to 2,799.39, 3,863.08 and 1,540.45

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Solution

The fourth proportional to 2,799.39, 3,863.08 and 1,540.45 is: 2,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.39 : 3,863.08 = 1,540.45 : x
  2. Step 2: Convert to fraction form
    2,799.39/3,863.08 = 1,540.45/x
  3. Step 3: Cross multiply
    2,799.39x = 3,863.08 × 1,540.45
  4. Step 4: Simplify right side
    2,799.39x = 5,950,882.90
  5. Step 5: Solve for x
    x = 5,950,882.90/2,799.39
  6. Step 6: Final answer
    x = 2,125.77

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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.