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Finding the Fourth Proportional to 3,967.38, 5,934.06 and 2,859.30

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Solution

The fourth proportional to 3,967.38, 5,934.06 and 2,859.30 is: 4,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.38 : 5,934.06 = 2,859.30 : x
  2. Step 2: Convert to fraction form
    3,967.38/5,934.06 = 2,859.30/x
  3. Step 3: Cross multiply
    3,967.38x = 5,934.06 × 2,859.30
  4. Step 4: Simplify right side
    3,967.38x = 16,967,257.76
  5. Step 5: Solve for x
    x = 16,967,257.76/3,967.38
  6. Step 6: Final answer
    x = 4,276.69

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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.