Home / 2,110.65-3,166.28-724.34

Finding the Fourth Proportional to 2,110.65, 3,166.28 and 724.34

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Solution

The fourth proportional to 2,110.65, 3,166.28 and 724.34 is: 1,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.65 : 3,166.28 = 724.34 : x
  2. Step 2: Convert to fraction form
    2,110.65/3,166.28 = 724.34/x
  3. Step 3: Cross multiply
    2,110.65x = 3,166.28 × 724.34
  4. Step 4: Simplify right side
    2,110.65x = 2,293,447.42
  5. Step 5: Solve for x
    x = 2,293,447.42/2,110.65
  6. Step 6: Final answer
    x = 1,086.61

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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.