Home / 7,419.49-11,122.76-2,805.73

Finding the Fourth Proportional to 7,419.49, 11,122.76 and 2,805.73

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Solution

The fourth proportional to 7,419.49, 11,122.76 and 2,805.73 is: 4,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.49 : 11,122.76 = 2,805.73 : x
  2. Step 2: Convert to fraction form
    7,419.49/11,122.76 = 2,805.73/x
  3. Step 3: Cross multiply
    7,419.49x = 11,122.76 × 2,805.73
  4. Step 4: Simplify right side
    7,419.49x = 31,207,447.39
  5. Step 5: Solve for x
    x = 31,207,447.39/7,419.49
  6. Step 6: Final answer
    x = 4,206.14

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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.