Home / 7,621.66-11,433.30-2,074.78

Finding the Fourth Proportional to 7,621.66, 11,433.30 and 2,074.78

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Solution

The fourth proportional to 7,621.66, 11,433.30 and 2,074.78 is: 3,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.66 : 11,433.30 = 2,074.78 : x
  2. Step 2: Convert to fraction form
    7,621.66/11,433.30 = 2,074.78/x
  3. Step 3: Cross multiply
    7,621.66x = 11,433.30 × 2,074.78
  4. Step 4: Simplify right side
    7,621.66x = 23,721,582.17
  5. Step 5: Solve for x
    x = 23,721,582.17/7,621.66
  6. Step 6: Final answer
    x = 3,112.39

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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.