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Finding the Fourth Proportional to 5,704.40, 7,867.86 and 3,606.50

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Solution

The fourth proportional to 5,704.40, 7,867.86 and 3,606.50 is: 4,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.40 : 7,867.86 = 3,606.50 : x
  2. Step 2: Convert to fraction form
    5,704.40/7,867.86 = 3,606.50/x
  3. Step 3: Cross multiply
    5,704.40x = 7,867.86 × 3,606.50
  4. Step 4: Simplify right side
    5,704.40x = 28,375,437.09
  5. Step 5: Solve for x
    x = 28,375,437.09/5,704.40
  6. Step 6: Final answer
    x = 4,974.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.