Home / 2,265.28-3,126.11-1,257.01

Finding the Fourth Proportional to 2,265.28, 3,126.11 and 1,257.01

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Solution

The fourth proportional to 2,265.28, 3,126.11 and 1,257.01 is: 1,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.28 : 3,126.11 = 1,257.01 : x
  2. Step 2: Convert to fraction form
    2,265.28/3,126.11 = 1,257.01/x
  3. Step 3: Cross multiply
    2,265.28x = 3,126.11 × 1,257.01
  4. Step 4: Simplify right side
    2,265.28x = 3,929,537.43
  5. Step 5: Solve for x
    x = 3,929,537.43/2,265.28
  6. Step 6: Final answer
    x = 1,734.68

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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.