Home / 7,398.60-11,098.98-2,720.85

Finding the Fourth Proportional to 7,398.60, 11,098.98 and 2,720.85

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Solution

The fourth proportional to 7,398.60, 11,098.98 and 2,720.85 is: 4,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.60 : 11,098.98 = 2,720.85 : x
  2. Step 2: Convert to fraction form
    7,398.60/11,098.98 = 2,720.85/x
  3. Step 3: Cross multiply
    7,398.60x = 11,098.98 × 2,720.85
  4. Step 4: Simplify right side
    7,398.60x = 30,198,659.73
  5. Step 5: Solve for x
    x = 30,198,659.73/7,398.60
  6. Step 6: Final answer
    x = 4,081.67

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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.