Home / 4,122.92-5,689.91-2,329.78

Finding the Fourth Proportional to 4,122.92, 5,689.91 and 2,329.78

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Solution

The fourth proportional to 4,122.92, 5,689.91 and 2,329.78 is: 3,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.92 : 5,689.91 = 2,329.78 : x
  2. Step 2: Convert to fraction form
    4,122.92/5,689.91 = 2,329.78/x
  3. Step 3: Cross multiply
    4,122.92x = 5,689.91 × 2,329.78
  4. Step 4: Simplify right side
    4,122.92x = 13,256,198.42
  5. Step 5: Solve for x
    x = 13,256,198.42/4,122.92
  6. Step 6: Final answer
    x = 3,215.25

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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.