Home / 7,581.80-11,372.70-2,961.56

Finding the Fourth Proportional to 7,581.80, 11,372.70 and 2,961.56

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Solution

The fourth proportional to 7,581.80, 11,372.70 and 2,961.56 is: 4,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.80 : 11,372.70 = 2,961.56 : x
  2. Step 2: Convert to fraction form
    7,581.80/11,372.70 = 2,961.56/x
  3. Step 3: Cross multiply
    7,581.80x = 11,372.70 × 2,961.56
  4. Step 4: Simplify right side
    7,581.80x = 33,680,972.95
  5. Step 5: Solve for x
    x = 33,680,972.95/7,581.80
  6. Step 6: Final answer
    x = 4,442.34

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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.