Home / 2,949.14-4,422.84-868.76

Finding the Fourth Proportional to 2,949.14, 4,422.84 and 868.76

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Solution

The fourth proportional to 2,949.14, 4,422.84 and 868.76 is: 1,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.14 : 4,422.84 = 868.76 : x
  2. Step 2: Convert to fraction form
    2,949.14/4,422.84 = 868.76/x
  3. Step 3: Cross multiply
    2,949.14x = 4,422.84 × 868.76
  4. Step 4: Simplify right side
    2,949.14x = 3,842,377.69
  5. Step 5: Solve for x
    x = 3,842,377.69/2,949.14
  6. Step 6: Final answer
    x = 1,302.88

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1.5x scale

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.