Home / 7,419.13-11,131.32-2,488.76

Finding the Fourth Proportional to 7,419.13, 11,131.32 and 2,488.76

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Solution

The fourth proportional to 7,419.13, 11,131.32 and 2,488.76 is: 3,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.13 : 11,131.32 = 2,488.76 : x
  2. Step 2: Convert to fraction form
    7,419.13/11,131.32 = 2,488.76/x
  3. Step 3: Cross multiply
    7,419.13x = 11,131.32 × 2,488.76
  4. Step 4: Simplify right side
    7,419.13x = 27,703,179.38
  5. Step 5: Solve for x
    x = 27,703,179.38/7,419.13
  6. Step 6: Final answer
    x = 3,734.02

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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.