Home / 2,049.18-3,073.64-749.81

Finding the Fourth Proportional to 2,049.18, 3,073.64 and 749.81

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Solution

The fourth proportional to 2,049.18, 3,073.64 and 749.81 is: 1,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.18 : 3,073.64 = 749.81 : x
  2. Step 2: Convert to fraction form
    2,049.18/3,073.64 = 749.81/x
  3. Step 3: Cross multiply
    2,049.18x = 3,073.64 × 749.81
  4. Step 4: Simplify right side
    2,049.18x = 2,304,626.89
  5. Step 5: Solve for x
    x = 2,304,626.89/2,049.18
  6. Step 6: Final answer
    x = 1,124.66

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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.