Home / 7,421.14-11,131.80-2,226.70

Finding the Fourth Proportional to 7,421.14, 11,131.80 and 2,226.70

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Solution

The fourth proportional to 7,421.14, 11,131.80 and 2,226.70 is: 3,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.14 : 11,131.80 = 2,226.70 : x
  2. Step 2: Convert to fraction form
    7,421.14/11,131.80 = 2,226.70/x
  3. Step 3: Cross multiply
    7,421.14x = 11,131.80 × 2,226.70
  4. Step 4: Simplify right side
    7,421.14x = 24,787,179.06
  5. Step 5: Solve for x
    x = 24,787,179.06/7,421.14
  6. Step 6: Final answer
    x = 3,340.08

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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.