Home / 1,192.13-1,789.29-607.55

Finding the Fourth Proportional to 1,192.13, 1,789.29 and 607.55

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Solution

The fourth proportional to 1,192.13, 1,789.29 and 607.55 is: 911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.13 : 1,789.29 = 607.55 : x
  2. Step 2: Convert to fraction form
    1,192.13/1,789.29 = 607.55/x
  3. Step 3: Cross multiply
    1,192.13x = 1,789.29 × 607.55
  4. Step 4: Simplify right side
    1,192.13x = 1,087,083.14
  5. Step 5: Solve for x
    x = 1,087,083.14/1,192.13
  6. Step 6: Final answer
    x = 911.88

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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.