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Finding the Fourth Proportional to 5,912.58, 8,869.14 and 2,213.86

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Solution

The fourth proportional to 5,912.58, 8,869.14 and 2,213.86 is: 3,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.58 : 8,869.14 = 2,213.86 : x
  2. Step 2: Convert to fraction form
    5,912.58/8,869.14 = 2,213.86/x
  3. Step 3: Cross multiply
    5,912.58x = 8,869.14 × 2,213.86
  4. Step 4: Simplify right side
    5,912.58x = 19,635,034.28
  5. Step 5: Solve for x
    x = 19,635,034.28/5,912.58
  6. Step 6: Final answer
    x = 3,320.89

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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.