Home / 9,322.92-13,981.05-3,081.78

Finding the Fourth Proportional to 9,322.92, 13,981.05 and 3,081.78

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Solution

The fourth proportional to 9,322.92, 13,981.05 and 3,081.78 is: 4,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.92 : 13,981.05 = 3,081.78 : x
  2. Step 2: Convert to fraction form
    9,322.92/13,981.05 = 3,081.78/x
  3. Step 3: Cross multiply
    9,322.92x = 13,981.05 × 3,081.78
  4. Step 4: Simplify right side
    9,322.92x = 43,086,473.76
  5. Step 5: Solve for x
    x = 43,086,473.76/9,322.92
  6. Step 6: Final answer
    x = 4,621.57

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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.