Home / 4,120.66-5,689.14-2,706.86

Finding the Fourth Proportional to 4,120.66, 5,689.14 and 2,706.86

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Solution

The fourth proportional to 4,120.66, 5,689.14 and 2,706.86 is: 3,737.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.66 : 5,689.14 = 2,706.86 : x
  2. Step 2: Convert to fraction form
    4,120.66/5,689.14 = 2,706.86/x
  3. Step 3: Cross multiply
    4,120.66x = 5,689.14 × 2,706.86
  4. Step 4: Simplify right side
    4,120.66x = 15,399,709.57
  5. Step 5: Solve for x
    x = 15,399,709.57/4,120.66
  6. Step 6: Final answer
    x = 3,737.19

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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.