Home / 2,540.28-3,810.40-1,371.24

Finding the Fourth Proportional to 2,540.28, 3,810.40 and 1,371.24

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Solution

The fourth proportional to 2,540.28, 3,810.40 and 1,371.24 is: 2,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.28 : 3,810.40 = 1,371.24 : x
  2. Step 2: Convert to fraction form
    2,540.28/3,810.40 = 1,371.24/x
  3. Step 3: Cross multiply
    2,540.28x = 3,810.40 × 1,371.24
  4. Step 4: Simplify right side
    2,540.28x = 5,224,972.90
  5. Step 5: Solve for x
    x = 5,224,972.90/2,540.28
  6. Step 6: Final answer
    x = 2,056.85

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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.