Home / 3,281.19-4,921.79-1,332.95

Finding the Fourth Proportional to 3,281.19, 4,921.79 and 1,332.95

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Solution

The fourth proportional to 3,281.19, 4,921.79 and 1,332.95 is: 1,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.19 : 4,921.79 = 1,332.95 : x
  2. Step 2: Convert to fraction form
    3,281.19/4,921.79 = 1,332.95/x
  3. Step 3: Cross multiply
    3,281.19x = 4,921.79 × 1,332.95
  4. Step 4: Simplify right side
    3,281.19x = 6,560,468.71
  5. Step 5: Solve for x
    x = 6,560,468.71/3,281.19
  6. Step 6: Final answer
    x = 1,999.42

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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.