Home / 3,288.18-4,538.61-1,891.38

Finding the Fourth Proportional to 3,288.18, 4,538.61 and 1,891.38

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Solution

The fourth proportional to 3,288.18, 4,538.61 and 1,891.38 is: 2,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.18 : 4,538.61 = 1,891.38 : x
  2. Step 2: Convert to fraction form
    3,288.18/4,538.61 = 1,891.38/x
  3. Step 3: Cross multiply
    3,288.18x = 4,538.61 × 1,891.38
  4. Step 4: Simplify right side
    3,288.18x = 8,584,236.18
  5. Step 5: Solve for x
    x = 8,584,236.18/3,288.18
  6. Step 6: Final answer
    x = 2,610.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.