Home / 3,687.12-5,531.94-1,222.20

Finding the Fourth Proportional to 3,687.12, 5,531.94 and 1,222.20

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Solution

The fourth proportional to 3,687.12, 5,531.94 and 1,222.20 is: 1,833.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.12 : 5,531.94 = 1,222.20 : x
  2. Step 2: Convert to fraction form
    3,687.12/5,531.94 = 1,222.20/x
  3. Step 3: Cross multiply
    3,687.12x = 5,531.94 × 1,222.20
  4. Step 4: Simplify right side
    3,687.12x = 6,761,137.07
  5. Step 5: Solve for x
    x = 6,761,137.07/3,687.12
  6. Step 6: Final answer
    x = 1,833.72

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1.5x scale

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.