Home / 1,454.78-2,002.56-1,265.60

Finding the Fourth Proportional to 1,454.78, 2,002.56 and 1,265.60

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Solution

The fourth proportional to 1,454.78, 2,002.56 and 1,265.60 is: 1,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.78 : 2,002.56 = 1,265.60 : x
  2. Step 2: Convert to fraction form
    1,454.78/2,002.56 = 1,265.60/x
  3. Step 3: Cross multiply
    1,454.78x = 2,002.56 × 1,265.60
  4. Step 4: Simplify right side
    1,454.78x = 2,534,439.94
  5. Step 5: Solve for x
    x = 2,534,439.94/1,454.78
  6. Step 6: Final answer
    x = 1,742.15

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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.