Home / 1,121.23-1,679.41-1,060.58

Finding the Fourth Proportional to 1,121.23, 1,679.41 and 1,060.58

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Solution

The fourth proportional to 1,121.23, 1,679.41 and 1,060.58 is: 1,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121.23 : 1,679.41 = 1,060.58 : x
  2. Step 2: Convert to fraction form
    1,121.23/1,679.41 = 1,060.58/x
  3. Step 3: Cross multiply
    1,121.23x = 1,679.41 × 1,060.58
  4. Step 4: Simplify right side
    1,121.23x = 1,781,148.66
  5. Step 5: Solve for x
    x = 1,781,148.66/1,121.23
  6. Step 6: Final answer
    x = 1,588.57

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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.