Home / 4,121.29-5,689.07-2,864.17

Finding the Fourth Proportional to 4,121.29, 5,689.07 and 2,864.17

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Solution

The fourth proportional to 4,121.29, 5,689.07 and 2,864.17 is: 3,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.29 : 5,689.07 = 2,864.17 : x
  2. Step 2: Convert to fraction form
    4,121.29/5,689.07 = 2,864.17/x
  3. Step 3: Cross multiply
    4,121.29x = 5,689.07 × 2,864.17
  4. Step 4: Simplify right side
    4,121.29x = 16,294,463.62
  5. Step 5: Solve for x
    x = 16,294,463.62/4,121.29
  6. Step 6: Final answer
    x = 3,953.73

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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.