Home / 5,221.76-7,832.91-2,621.66

Finding the Fourth Proportional to 5,221.76, 7,832.91 and 2,621.66

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Solution

The fourth proportional to 5,221.76, 7,832.91 and 2,621.66 is: 3,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.76 : 7,832.91 = 2,621.66 : x
  2. Step 2: Convert to fraction form
    5,221.76/7,832.91 = 2,621.66/x
  3. Step 3: Cross multiply
    5,221.76x = 7,832.91 × 2,621.66
  4. Step 4: Simplify right side
    5,221.76x = 20,535,226.83
  5. Step 5: Solve for x
    x = 20,535,226.83/5,221.76
  6. Step 6: Final answer
    x = 3,932.63

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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.