Home / 6,422.92-9,631.66-2,039.20

Finding the Fourth Proportional to 6,422.92, 9,631.66 and 2,039.20

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Solution

The fourth proportional to 6,422.92, 9,631.66 and 2,039.20 is: 3,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.92 : 9,631.66 = 2,039.20 : x
  2. Step 2: Convert to fraction form
    6,422.92/9,631.66 = 2,039.20/x
  3. Step 3: Cross multiply
    6,422.92x = 9,631.66 × 2,039.20
  4. Step 4: Simplify right side
    6,422.92x = 19,640,881.07
  5. Step 5: Solve for x
    x = 19,640,881.07/6,422.92
  6. Step 6: Final answer
    x = 3,057.94

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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.