Home / 1,755.16-2,422.11-1,125.69

Finding the Fourth Proportional to 1,755.16, 2,422.11 and 1,125.69

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Solution

The fourth proportional to 1,755.16, 2,422.11 and 1,125.69 is: 1,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.16 : 2,422.11 = 1,125.69 : x
  2. Step 2: Convert to fraction form
    1,755.16/2,422.11 = 1,125.69/x
  3. Step 3: Cross multiply
    1,755.16x = 2,422.11 × 1,125.69
  4. Step 4: Simplify right side
    1,755.16x = 2,726,545.01
  5. Step 5: Solve for x
    x = 2,726,545.01/1,755.16
  6. Step 6: Final answer
    x = 1,553.45

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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.