Home / 7,162.20-10,734.48-3,415.95

Finding the Fourth Proportional to 7,162.20, 10,734.48 and 3,415.95

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Solution

The fourth proportional to 7,162.20, 10,734.48 and 3,415.95 is: 5,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.20 : 10,734.48 = 3,415.95 : x
  2. Step 2: Convert to fraction form
    7,162.20/10,734.48 = 3,415.95/x
  3. Step 3: Cross multiply
    7,162.20x = 10,734.48 × 3,415.95
  4. Step 4: Simplify right side
    7,162.20x = 36,668,446.96
  5. Step 5: Solve for x
    x = 36,668,446.96/7,162.20
  6. Step 6: Final answer
    x = 5,119.72

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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.