Home / 3,982.18-5,495.48-2,491

Finding the Fourth Proportional to 3,982.18, 5,495.48 and 2,491

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Solution

The fourth proportional to 3,982.18, 5,495.48 and 2,491 is: 3,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.18 : 5,495.48 = 2,491 : x
  2. Step 2: Convert to fraction form
    3,982.18/5,495.48 = 2,491/x
  3. Step 3: Cross multiply
    3,982.18x = 5,495.48 × 2,491
  4. Step 4: Simplify right side
    3,982.18x = 13,689,240.68
  5. Step 5: Solve for x
    x = 13,689,240.68/3,982.18
  6. Step 6: Final answer
    x = 3,437.62

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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.