Home / 3,144.58-4,340.06-1,819.09

Finding the Fourth Proportional to 3,144.58, 4,340.06 and 1,819.09

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Solution

The fourth proportional to 3,144.58, 4,340.06 and 1,819.09 is: 2,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.58 : 4,340.06 = 1,819.09 : x
  2. Step 2: Convert to fraction form
    3,144.58/4,340.06 = 1,819.09/x
  3. Step 3: Cross multiply
    3,144.58x = 4,340.06 × 1,819.09
  4. Step 4: Simplify right side
    3,144.58x = 7,894,959.75
  5. Step 5: Solve for x
    x = 7,894,959.75/3,144.58
  6. Step 6: Final answer
    x = 2,510.66

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Half scale
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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.