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Finding the Fourth Proportional to 2,819.42, 4,227.95 and 844.34

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Solution

The fourth proportional to 2,819.42, 4,227.95 and 844.34 is: 1,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.42 : 4,227.95 = 844.34 : x
  2. Step 2: Convert to fraction form
    2,819.42/4,227.95 = 844.34/x
  3. Step 3: Cross multiply
    2,819.42x = 4,227.95 × 844.34
  4. Step 4: Simplify right side
    2,819.42x = 3,569,832.06
  5. Step 5: Solve for x
    x = 3,569,832.06/2,819.42
  6. Step 6: Final answer
    x = 1,266.16

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1.5x scale

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.