Home / 2,540.30-3,810.45-1,154.12

Finding the Fourth Proportional to 2,540.30, 3,810.45 and 1,154.12

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Solution

The fourth proportional to 2,540.30, 3,810.45 and 1,154.12 is: 1,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.30 : 3,810.45 = 1,154.12 : x
  2. Step 2: Convert to fraction form
    2,540.30/3,810.45 = 1,154.12/x
  3. Step 3: Cross multiply
    2,540.30x = 3,810.45 × 1,154.12
  4. Step 4: Simplify right side
    2,540.30x = 4,397,716.55
  5. Step 5: Solve for x
    x = 4,397,716.55/2,540.30
  6. Step 6: Final answer
    x = 1,731.18

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1.5x scale

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.