Home / 3,676.50-5,487.78-3,159.80

Finding the Fourth Proportional to 3,676.50, 5,487.78 and 3,159.80

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Solution

The fourth proportional to 3,676.50, 5,487.78 and 3,159.80 is: 4,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.50 : 5,487.78 = 3,159.80 : x
  2. Step 2: Convert to fraction form
    3,676.50/5,487.78 = 3,159.80/x
  3. Step 3: Cross multiply
    3,676.50x = 5,487.78 × 3,159.80
  4. Step 4: Simplify right side
    3,676.50x = 17,340,287.24
  5. Step 5: Solve for x
    x = 17,340,287.24/3,676.50
  6. Step 6: Final answer
    x = 4,716.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.