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Finding the Fourth Proportional to 6,354.56, 8,769.28 and 3,560

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Solution

The fourth proportional to 6,354.56, 8,769.28 and 3,560 is: 4,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,354.56 : 8,769.28 = 3,560 : x
  2. Step 2: Convert to fraction form
    6,354.56/8,769.28 = 3,560/x
  3. Step 3: Cross multiply
    6,354.56x = 8,769.28 × 3,560
  4. Step 4: Simplify right side
    6,354.56x = 31,218,636.80
  5. Step 5: Solve for x
    x = 31,218,636.80/6,354.56
  6. Step 6: Final answer
    x = 4,912.79

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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.