Home / 3,689.04-5,531.64-1,222.95

Finding the Fourth Proportional to 3,689.04, 5,531.64 and 1,222.95

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Solution

The fourth proportional to 3,689.04, 5,531.64 and 1,222.95 is: 1,833.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.04 : 5,531.64 = 1,222.95 : x
  2. Step 2: Convert to fraction form
    3,689.04/5,531.64 = 1,222.95/x
  3. Step 3: Cross multiply
    3,689.04x = 5,531.64 × 1,222.95
  4. Step 4: Simplify right side
    3,689.04x = 6,764,919.14
  5. Step 5: Solve for x
    x = 6,764,919.14/3,689.04
  6. Step 6: Final answer
    x = 1,833.79

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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.