Home / 1,192.17-1,788.25-422.13

Finding the Fourth Proportional to 1,192.17, 1,788.25 and 422.13

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Solution

The fourth proportional to 1,192.17, 1,788.25 and 422.13 is: 633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.17 : 1,788.25 = 422.13 : x
  2. Step 2: Convert to fraction form
    1,192.17/1,788.25 = 422.13/x
  3. Step 3: Cross multiply
    1,192.17x = 1,788.25 × 422.13
  4. Step 4: Simplify right side
    1,192.17x = 754,873.97
  5. Step 5: Solve for x
    x = 754,873.97/1,192.17
  6. Step 6: Final answer
    x = 633.19

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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.