Home / 2,819.44-3,890.82-1,641.29

Finding the Fourth Proportional to 2,819.44, 3,890.82 and 1,641.29

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Solution

The fourth proportional to 2,819.44, 3,890.82 and 1,641.29 is: 2,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.44 : 3,890.82 = 1,641.29 : x
  2. Step 2: Convert to fraction form
    2,819.44/3,890.82 = 1,641.29/x
  3. Step 3: Cross multiply
    2,819.44x = 3,890.82 × 1,641.29
  4. Step 4: Simplify right side
    2,819.44x = 6,385,979.84
  5. Step 5: Solve for x
    x = 6,385,979.84/2,819.44
  6. Step 6: Final answer
    x = 2,264.98

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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.