Home / 3,182.84-4,382.34-2,891.24

Finding the Fourth Proportional to 3,182.84, 4,382.34 and 2,891.24

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Solution

The fourth proportional to 3,182.84, 4,382.34 and 2,891.24 is: 3,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.84 : 4,382.34 = 2,891.24 : x
  2. Step 2: Convert to fraction form
    3,182.84/4,382.34 = 2,891.24/x
  3. Step 3: Cross multiply
    3,182.84x = 4,382.34 × 2,891.24
  4. Step 4: Simplify right side
    3,182.84x = 12,670,396.70
  5. Step 5: Solve for x
    x = 12,670,396.70/3,182.84
  6. Step 6: Final answer
    x = 3,980.85

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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.