Home / 3,520.31-5,281.88-1,329.66

Finding the Fourth Proportional to 3,520.31, 5,281.88 and 1,329.66

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Solution

The fourth proportional to 3,520.31, 5,281.88 and 1,329.66 is: 1,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.31 : 5,281.88 = 1,329.66 : x
  2. Step 2: Convert to fraction form
    3,520.31/5,281.88 = 1,329.66/x
  3. Step 3: Cross multiply
    3,520.31x = 5,281.88 × 1,329.66
  4. Step 4: Simplify right side
    3,520.31x = 7,023,097.91
  5. Step 5: Solve for x
    x = 7,023,097.91/3,520.31
  6. Step 6: Final answer
    x = 1,995.03

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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.