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Finding the Fourth Proportional to 2,834.40, 4,251.88 and 886.64

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Solution

The fourth proportional to 2,834.40, 4,251.88 and 886.64 is: 1,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.40 : 4,251.88 = 886.64 : x
  2. Step 2: Convert to fraction form
    2,834.40/4,251.88 = 886.64/x
  3. Step 3: Cross multiply
    2,834.40x = 4,251.88 × 886.64
  4. Step 4: Simplify right side
    2,834.40x = 3,769,886.88
  5. Step 5: Solve for x
    x = 3,769,886.88/2,834.40
  6. Step 6: Final answer
    x = 1,330.05

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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.