Home / 2,257.16-3,382.68-869.18

Finding the Fourth Proportional to 2,257.16, 3,382.68 and 869.18

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Solution

The fourth proportional to 2,257.16, 3,382.68 and 869.18 is: 1,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.16 : 3,382.68 = 869.18 : x
  2. Step 2: Convert to fraction form
    2,257.16/3,382.68 = 869.18/x
  3. Step 3: Cross multiply
    2,257.16x = 3,382.68 × 869.18
  4. Step 4: Simplify right side
    2,257.16x = 2,940,157.80
  5. Step 5: Solve for x
    x = 2,940,157.80/2,257.16
  6. Step 6: Final answer
    x = 1,302.59

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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.