Home / 5,221.90-7,832.85-3,148.30

Finding the Fourth Proportional to 5,221.90, 7,832.85 and 3,148.30

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Solution

The fourth proportional to 5,221.90, 7,832.85 and 3,148.30 is: 4,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.90 : 7,832.85 = 3,148.30 : x
  2. Step 2: Convert to fraction form
    5,221.90/7,832.85 = 3,148.30/x
  3. Step 3: Cross multiply
    5,221.90x = 7,832.85 × 3,148.30
  4. Step 4: Simplify right side
    5,221.90x = 24,660,161.66
  5. Step 5: Solve for x
    x = 24,660,161.66/5,221.90
  6. Step 6: Final answer
    x = 4,722.45

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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.