Home / 1,548.37-2,132.17-1,280.85

Finding the Fourth Proportional to 1,548.37, 2,132.17 and 1,280.85

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Solution

The fourth proportional to 1,548.37, 2,132.17 and 1,280.85 is: 1,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.37 : 2,132.17 = 1,280.85 : x
  2. Step 2: Convert to fraction form
    1,548.37/2,132.17 = 1,280.85/x
  3. Step 3: Cross multiply
    1,548.37x = 2,132.17 × 1,280.85
  4. Step 4: Simplify right side
    1,548.37x = 2,730,989.94
  5. Step 5: Solve for x
    x = 2,730,989.94/1,548.37
  6. Step 6: Final answer
    x = 1,763.78

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1.5x scale

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.