Home / 2,216.12-3,324.20-656.15

Finding the Fourth Proportional to 2,216.12, 3,324.20 and 656.15

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Solution

The fourth proportional to 2,216.12, 3,324.20 and 656.15 is: 984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.12 : 3,324.20 = 656.15 : x
  2. Step 2: Convert to fraction form
    2,216.12/3,324.20 = 656.15/x
  3. Step 3: Cross multiply
    2,216.12x = 3,324.20 × 656.15
  4. Step 4: Simplify right side
    2,216.12x = 2,181,153.93
  5. Step 5: Solve for x
    x = 2,181,153.93/2,216.12
  6. Step 6: Final answer
    x = 984.22

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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.