Home / 8,231.28-12,343.92-2,386.08

Finding the Fourth Proportional to 8,231.28, 12,343.92 and 2,386.08

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Solution

The fourth proportional to 8,231.28, 12,343.92 and 2,386.08 is: 3,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.28 : 12,343.92 = 2,386.08 : x
  2. Step 2: Convert to fraction form
    8,231.28/12,343.92 = 2,386.08/x
  3. Step 3: Cross multiply
    8,231.28x = 12,343.92 × 2,386.08
  4. Step 4: Simplify right side
    8,231.28x = 29,453,580.63
  5. Step 5: Solve for x
    x = 29,453,580.63/8,231.28
  6. Step 6: Final answer
    x = 3,578.25

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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.