Home / 3,265.70-4,890.45-3,119.90

Finding the Fourth Proportional to 3,265.70, 4,890.45 and 3,119.90

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Solution

The fourth proportional to 3,265.70, 4,890.45 and 3,119.90 is: 4,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,265.70 : 4,890.45 = 3,119.90 : x
  2. Step 2: Convert to fraction form
    3,265.70/4,890.45 = 3,119.90/x
  3. Step 3: Cross multiply
    3,265.70x = 4,890.45 × 3,119.90
  4. Step 4: Simplify right side
    3,265.70x = 15,257,714.96
  5. Step 5: Solve for x
    x = 15,257,714.96/3,265.70
  6. Step 6: Final answer
    x = 4,672.11

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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.