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Finding the Fourth Proportional to 2,834.07, 4,251.12 and 859.72

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Solution

The fourth proportional to 2,834.07, 4,251.12 and 859.72 is: 1,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.07 : 4,251.12 = 859.72 : x
  2. Step 2: Convert to fraction form
    2,834.07/4,251.12 = 859.72/x
  3. Step 3: Cross multiply
    2,834.07x = 4,251.12 × 859.72
  4. Step 4: Simplify right side
    2,834.07x = 3,654,770.77
  5. Step 5: Solve for x
    x = 3,654,770.77/2,834.07
  6. Step 6: Final answer
    x = 1,289.58

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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.