Home / 3,397.62-4,689.71-2,218.87

Finding the Fourth Proportional to 3,397.62, 4,689.71 and 2,218.87

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Solution

The fourth proportional to 3,397.62, 4,689.71 and 2,218.87 is: 3,062.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.62 : 4,689.71 = 2,218.87 : x
  2. Step 2: Convert to fraction form
    3,397.62/4,689.71 = 2,218.87/x
  3. Step 3: Cross multiply
    3,397.62x = 4,689.71 × 2,218.87
  4. Step 4: Simplify right side
    3,397.62x = 10,405,856.83
  5. Step 5: Solve for x
    x = 10,405,856.83/3,397.62
  6. Step 6: Final answer
    x = 3,062.69

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1.5x scale

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.