Home / 1,104.16-1,521.60-793.12

Finding the Fourth Proportional to 1,104.16, 1,521.60 and 793.12

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Solution

The fourth proportional to 1,104.16, 1,521.60 and 793.12 is: 1,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.16 : 1,521.60 = 793.12 : x
  2. Step 2: Convert to fraction form
    1,104.16/1,521.60 = 793.12/x
  3. Step 3: Cross multiply
    1,104.16x = 1,521.60 × 793.12
  4. Step 4: Simplify right side
    1,104.16x = 1,206,811.39
  5. Step 5: Solve for x
    x = 1,206,811.39/1,104.16
  6. Step 6: Final answer
    x = 1,092.97

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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.