Home / 7,402.22-11,102.97-2,721.87

Finding the Fourth Proportional to 7,402.22, 11,102.97 and 2,721.87

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Solution

The fourth proportional to 7,402.22, 11,102.97 and 2,721.87 is: 4,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.22 : 11,102.97 = 2,721.87 : x
  2. Step 2: Convert to fraction form
    7,402.22/11,102.97 = 2,721.87/x
  3. Step 3: Cross multiply
    7,402.22x = 11,102.97 × 2,721.87
  4. Step 4: Simplify right side
    7,402.22x = 30,220,840.95
  5. Step 5: Solve for x
    x = 30,220,840.95/7,402.22
  6. Step 6: Final answer
    x = 4,082.67

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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.