Home / 5,471.60-8,217.30-4,791.20

Finding the Fourth Proportional to 5,471.60, 8,217.30 and 4,791.20

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Solution

The fourth proportional to 5,471.60, 8,217.30 and 4,791.20 is: 7,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.60 : 8,217.30 = 4,791.20 : x
  2. Step 2: Convert to fraction form
    5,471.60/8,217.30 = 4,791.20/x
  3. Step 3: Cross multiply
    5,471.60x = 8,217.30 × 4,791.20
  4. Step 4: Simplify right side
    5,471.60x = 39,370,727.76
  5. Step 5: Solve for x
    x = 39,370,727.76/5,471.60
  6. Step 6: Final answer
    x = 7,195.47

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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.