Home / 5,472.20-8,208.30-5,107.70

Finding the Fourth Proportional to 5,472.20, 8,208.30 and 5,107.70

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Solution

The fourth proportional to 5,472.20, 8,208.30 and 5,107.70 is: 7,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.20 : 8,208.30 = 5,107.70 : x
  2. Step 2: Convert to fraction form
    5,472.20/8,208.30 = 5,107.70/x
  3. Step 3: Cross multiply
    5,472.20x = 8,208.30 × 5,107.70
  4. Step 4: Simplify right side
    5,472.20x = 41,925,533.91
  5. Step 5: Solve for x
    x = 41,925,533.91/5,472.20
  6. Step 6: Final answer
    x = 7,661.55

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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.