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Finding the Fourth Proportional to 2,060.13, 3,091.92 and 891.02

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Solution

The fourth proportional to 2,060.13, 3,091.92 and 891.02 is: 1,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.13 : 3,091.92 = 891.02 : x
  2. Step 2: Convert to fraction form
    2,060.13/3,091.92 = 891.02/x
  3. Step 3: Cross multiply
    2,060.13x = 3,091.92 × 891.02
  4. Step 4: Simplify right side
    2,060.13x = 2,754,954.57
  5. Step 5: Solve for x
    x = 2,754,954.57/2,060.13
  6. Step 6: Final answer
    x = 1,337.28

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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.