Home / 5,217.78-7,826.66-1,322.18

Finding the Fourth Proportional to 5,217.78, 7,826.66 and 1,322.18

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Solution

The fourth proportional to 5,217.78, 7,826.66 and 1,322.18 is: 1,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.78 : 7,826.66 = 1,322.18 : x
  2. Step 2: Convert to fraction form
    5,217.78/7,826.66 = 1,322.18/x
  3. Step 3: Cross multiply
    5,217.78x = 7,826.66 × 1,322.18
  4. Step 4: Simplify right side
    5,217.78x = 10,348,207.57
  5. Step 5: Solve for x
    x = 10,348,207.57/5,217.78
  6. Step 6: Final answer
    x = 1,983.26

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Similar ratio
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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.