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Finding the Fourth Proportional to 6,469.79, 8,928.26 and 3,675.29

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Solution

The fourth proportional to 6,469.79, 8,928.26 and 3,675.29 is: 5,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.79 : 8,928.26 = 3,675.29 : x
  2. Step 2: Convert to fraction form
    6,469.79/8,928.26 = 3,675.29/x
  3. Step 3: Cross multiply
    6,469.79x = 8,928.26 × 3,675.29
  4. Step 4: Simplify right side
    6,469.79x = 32,813,895.46
  5. Step 5: Solve for x
    x = 32,813,895.46/6,469.79
  6. Step 6: Final answer
    x = 5,071.87

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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.