Home / 7,412.28-11,120.13-2,218.26

Finding the Fourth Proportional to 7,412.28, 11,120.13 and 2,218.26

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Solution

The fourth proportional to 7,412.28, 11,120.13 and 2,218.26 is: 3,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.28 : 11,120.13 = 2,218.26 : x
  2. Step 2: Convert to fraction form
    7,412.28/11,120.13 = 2,218.26/x
  3. Step 3: Cross multiply
    7,412.28x = 11,120.13 × 2,218.26
  4. Step 4: Simplify right side
    7,412.28x = 24,667,339.57
  5. Step 5: Solve for x
    x = 24,667,339.57/7,412.28
  6. Step 6: Final answer
    x = 3,327.90

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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.