Home / 2,190.29-3,282.17-2,135.95

Finding the Fourth Proportional to 2,190.29, 3,282.17 and 2,135.95

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Solution

The fourth proportional to 2,190.29, 3,282.17 and 2,135.95 is: 3,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.29 : 3,282.17 = 2,135.95 : x
  2. Step 2: Convert to fraction form
    2,190.29/3,282.17 = 2,135.95/x
  3. Step 3: Cross multiply
    2,190.29x = 3,282.17 × 2,135.95
  4. Step 4: Simplify right side
    2,190.29x = 7,010,532.13
  5. Step 5: Solve for x
    x = 7,010,532.13/2,190.29
  6. Step 6: Final answer
    x = 3,200.74

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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.