Home / 3,231.16-4,452.78-2,181.40

Finding the Fourth Proportional to 3,231.16, 4,452.78 and 2,181.40

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Solution

The fourth proportional to 3,231.16, 4,452.78 and 2,181.40 is: 3,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.16 : 4,452.78 = 2,181.40 : x
  2. Step 2: Convert to fraction form
    3,231.16/4,452.78 = 2,181.40/x
  3. Step 3: Cross multiply
    3,231.16x = 4,452.78 × 2,181.40
  4. Step 4: Simplify right side
    3,231.16x = 9,713,294.29
  5. Step 5: Solve for x
    x = 9,713,294.29/3,231.16
  6. Step 6: Final answer
    x = 3,006.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.