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Finding the Fourth Proportional to 7,074.28, 10,608 and 4,266.28

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Solution

The fourth proportional to 7,074.28, 10,608 and 4,266.28 is: 6,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.28 : 10,608 = 4,266.28 : x
  2. Step 2: Convert to fraction form
    7,074.28/10,608 = 4,266.28/x
  3. Step 3: Cross multiply
    7,074.28x = 10,608 × 4,266.28
  4. Step 4: Simplify right side
    7,074.28x = 45,256,698.24
  5. Step 5: Solve for x
    x = 45,256,698.24/7,074.28
  6. Step 6: Final answer
    x = 6,397.36

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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.