Home / 1,626.95-2,245.52-1,272.17

Finding the Fourth Proportional to 1,626.95, 2,245.52 and 1,272.17

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Solution

The fourth proportional to 1,626.95, 2,245.52 and 1,272.17 is: 1,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.95 : 2,245.52 = 1,272.17 : x
  2. Step 2: Convert to fraction form
    1,626.95/2,245.52 = 1,272.17/x
  3. Step 3: Cross multiply
    1,626.95x = 2,245.52 × 1,272.17
  4. Step 4: Simplify right side
    1,626.95x = 2,856,691.97
  5. Step 5: Solve for x
    x = 2,856,691.97/1,626.95
  6. Step 6: Final answer
    x = 1,755.85

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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.