Home / 7,621.29-11,432.62-2,074.66

Finding the Fourth Proportional to 7,621.29, 11,432.62 and 2,074.66

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Solution

The fourth proportional to 7,621.29, 11,432.62 and 2,074.66 is: 3,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.29 : 11,432.62 = 2,074.66 : x
  2. Step 2: Convert to fraction form
    7,621.29/11,432.62 = 2,074.66/x
  3. Step 3: Cross multiply
    7,621.29x = 11,432.62 × 2,074.66
  4. Step 4: Simplify right side
    7,621.29x = 23,718,789.04
  5. Step 5: Solve for x
    x = 23,718,789.04/7,621.29
  6. Step 6: Final answer
    x = 3,112.18

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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.