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Finding the Fourth Proportional to 2,856.84, 4,286.10 and 1,008.09

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Solution

The fourth proportional to 2,856.84, 4,286.10 and 1,008.09 is: 1,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.84 : 4,286.10 = 1,008.09 : x
  2. Step 2: Convert to fraction form
    2,856.84/4,286.10 = 1,008.09/x
  3. Step 3: Cross multiply
    2,856.84x = 4,286.10 × 1,008.09
  4. Step 4: Simplify right side
    2,856.84x = 4,320,774.55
  5. Step 5: Solve for x
    x = 4,320,774.55/2,856.84
  6. Step 6: Final answer
    x = 1,512.43

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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.