Home / 2,540.85-3,810.10-1,154.13

Finding the Fourth Proportional to 2,540.85, 3,810.10 and 1,154.13

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Solution

The fourth proportional to 2,540.85, 3,810.10 and 1,154.13 is: 1,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.85 : 3,810.10 = 1,154.13 : x
  2. Step 2: Convert to fraction form
    2,540.85/3,810.10 = 1,154.13/x
  3. Step 3: Cross multiply
    2,540.85x = 3,810.10 × 1,154.13
  4. Step 4: Simplify right side
    2,540.85x = 4,397,350.71
  5. Step 5: Solve for x
    x = 4,397,350.71/2,540.85
  6. Step 6: Final answer
    x = 1,730.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.