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Finding the Fourth Proportional to 5,649, 7,796.52 and 4,451.28

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Solution

The fourth proportional to 5,649, 7,796.52 and 4,451.28 is: 6,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649 : 7,796.52 = 4,451.28 : x
  2. Step 2: Convert to fraction form
    5,649/7,796.52 = 4,451.28/x
  3. Step 3: Cross multiply
    5,649x = 7,796.52 × 4,451.28
  4. Step 4: Simplify right side
    5,649x = 34,704,493.55
  5. Step 5: Solve for x
    x = 34,704,493.55/5,649
  6. Step 6: Final answer
    x = 6,143.48

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1.5x scale

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.