Home / 2,799.85-3,863.61-1,540.66

Finding the Fourth Proportional to 2,799.85, 3,863.61 and 1,540.66

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Solution

The fourth proportional to 2,799.85, 3,863.61 and 1,540.66 is: 2,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.85 : 3,863.61 = 1,540.66 : x
  2. Step 2: Convert to fraction form
    2,799.85/3,863.61 = 1,540.66/x
  3. Step 3: Cross multiply
    2,799.85x = 3,863.61 × 1,540.66
  4. Step 4: Simplify right side
    2,799.85x = 5,952,509.38
  5. Step 5: Solve for x
    x = 5,952,509.38/2,799.85
  6. Step 6: Final answer
    x = 2,126.01

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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.