Home / 2,799.12-3,863.03-1,540.43

Finding the Fourth Proportional to 2,799.12, 3,863.03 and 1,540.43

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Solution

The fourth proportional to 2,799.12, 3,863.03 and 1,540.43 is: 2,125.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.12 : 3,863.03 = 1,540.43 : x
  2. Step 2: Convert to fraction form
    2,799.12/3,863.03 = 1,540.43/x
  3. Step 3: Cross multiply
    2,799.12x = 3,863.03 × 1,540.43
  4. Step 4: Simplify right side
    2,799.12x = 5,950,700.29
  5. Step 5: Solve for x
    x = 5,950,700.29/2,799.12
  6. Step 6: Final answer
    x = 2,125.92

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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.