Home / 5,217.55-7,826.36-1,321.97

Finding the Fourth Proportional to 5,217.55, 7,826.36 and 1,321.97

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Solution

The fourth proportional to 5,217.55, 7,826.36 and 1,321.97 is: 1,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.55 : 7,826.36 = 1,321.97 : x
  2. Step 2: Convert to fraction form
    5,217.55/7,826.36 = 1,321.97/x
  3. Step 3: Cross multiply
    5,217.55x = 7,826.36 × 1,321.97
  4. Step 4: Simplify right side
    5,217.55x = 10,346,167.39
  5. Step 5: Solve for x
    x = 10,346,167.39/5,217.55
  6. Step 6: Final answer
    x = 1,982.96

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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.