Home / 3,119-4,304.69-2,001.20

Finding the Fourth Proportional to 3,119, 4,304.69 and 2,001.20

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Solution

The fourth proportional to 3,119, 4,304.69 and 2,001.20 is: 2,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119 : 4,304.69 = 2,001.20 : x
  2. Step 2: Convert to fraction form
    3,119/4,304.69 = 2,001.20/x
  3. Step 3: Cross multiply
    3,119x = 4,304.69 × 2,001.20
  4. Step 4: Simplify right side
    3,119x = 8,614,545.63
  5. Step 5: Solve for x
    x = 8,614,545.63/3,119
  6. Step 6: Final answer
    x = 2,761.96

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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.