Home / 2,650.11-3,974.85-702.46

Finding the Fourth Proportional to 2,650.11, 3,974.85 and 702.46

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Solution

The fourth proportional to 2,650.11, 3,974.85 and 702.46 is: 1,053.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.11 : 3,974.85 = 702.46 : x
  2. Step 2: Convert to fraction form
    2,650.11/3,974.85 = 702.46/x
  3. Step 3: Cross multiply
    2,650.11x = 3,974.85 × 702.46
  4. Step 4: Simplify right side
    2,650.11x = 2,792,173.13
  5. Step 5: Solve for x
    x = 2,792,173.13/2,650.11
  6. Step 6: Final answer
    x = 1,053.61

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1.5x scale

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.