Home / 3,213.31-4,822.92-2,389.08

Finding the Fourth Proportional to 3,213.31, 4,822.92 and 2,389.08

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Solution

The fourth proportional to 3,213.31, 4,822.92 and 2,389.08 is: 3,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.31 : 4,822.92 = 2,389.08 : x
  2. Step 2: Convert to fraction form
    3,213.31/4,822.92 = 2,389.08/x
  3. Step 3: Cross multiply
    3,213.31x = 4,822.92 × 2,389.08
  4. Step 4: Simplify right side
    3,213.31x = 11,522,341.71
  5. Step 5: Solve for x
    x = 11,522,341.71/3,213.31
  6. Step 6: Final answer
    x = 3,585.82

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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.