Home / 4,272.64-6,408.43-1,152.90

Finding the Fourth Proportional to 4,272.64, 6,408.43 and 1,152.90

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Solution

The fourth proportional to 4,272.64, 6,408.43 and 1,152.90 is: 1,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.64 : 6,408.43 = 1,152.90 : x
  2. Step 2: Convert to fraction form
    4,272.64/6,408.43 = 1,152.90/x
  3. Step 3: Cross multiply
    4,272.64x = 6,408.43 × 1,152.90
  4. Step 4: Simplify right side
    4,272.64x = 7,388,278.95
  5. Step 5: Solve for x
    x = 7,388,278.95/4,272.64
  6. Step 6: Final answer
    x = 1,729.21

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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.