Home / 3,453.40-5,180.10-2,488.60

Finding the Fourth Proportional to 3,453.40, 5,180.10 and 2,488.60

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Solution

The fourth proportional to 3,453.40, 5,180.10 and 2,488.60 is: 3,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.40 : 5,180.10 = 2,488.60 : x
  2. Step 2: Convert to fraction form
    3,453.40/5,180.10 = 2,488.60/x
  3. Step 3: Cross multiply
    3,453.40x = 5,180.10 × 2,488.60
  4. Step 4: Simplify right side
    3,453.40x = 12,891,196.86
  5. Step 5: Solve for x
    x = 12,891,196.86/3,453.40
  6. Step 6: Final answer
    x = 3,732.90

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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.