Home / 3,406.20-5,106.71-1,761.70

Finding the Fourth Proportional to 3,406.20, 5,106.71 and 1,761.70

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Solution

The fourth proportional to 3,406.20, 5,106.71 and 1,761.70 is: 2,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.20 : 5,106.71 = 1,761.70 : x
  2. Step 2: Convert to fraction form
    3,406.20/5,106.71 = 1,761.70/x
  3. Step 3: Cross multiply
    3,406.20x = 5,106.71 × 1,761.70
  4. Step 4: Simplify right side
    3,406.20x = 8,996,456.66
  5. Step 5: Solve for x
    x = 8,996,456.66/3,406.20
  6. Step 6: Final answer
    x = 2,641.20

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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.