Home / 7,420.68-11,131.29-2,226.69

Finding the Fourth Proportional to 7,420.68, 11,131.29 and 2,226.69

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Solution

The fourth proportional to 7,420.68, 11,131.29 and 2,226.69 is: 3,340.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.68 : 11,131.29 = 2,226.69 : x
  2. Step 2: Convert to fraction form
    7,420.68/11,131.29 = 2,226.69/x
  3. Step 3: Cross multiply
    7,420.68x = 11,131.29 × 2,226.69
  4. Step 4: Simplify right side
    7,420.68x = 24,785,932.13
  5. Step 5: Solve for x
    x = 24,785,932.13/7,420.68
  6. Step 6: Final answer
    x = 3,340.12

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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.