Home / 2,110.81-3,166.26-724.13

Finding the Fourth Proportional to 2,110.81, 3,166.26 and 724.13

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Solution

The fourth proportional to 2,110.81, 3,166.26 and 724.13 is: 1,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.81 : 3,166.26 = 724.13 : x
  2. Step 2: Convert to fraction form
    2,110.81/3,166.26 = 724.13/x
  3. Step 3: Cross multiply
    2,110.81x = 3,166.26 × 724.13
  4. Step 4: Simplify right side
    2,110.81x = 2,292,780.23
  5. Step 5: Solve for x
    x = 2,292,780.23/2,110.81
  6. Step 6: Final answer
    x = 1,086.21

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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.