Home / 3,247.68-4,872.48-1,605.12

Finding the Fourth Proportional to 3,247.68, 4,872.48 and 1,605.12

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Solution

The fourth proportional to 3,247.68, 4,872.48 and 1,605.12 is: 2,408.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.68 : 4,872.48 = 1,605.12 : x
  2. Step 2: Convert to fraction form
    3,247.68/4,872.48 = 1,605.12/x
  3. Step 3: Cross multiply
    3,247.68x = 4,872.48 × 1,605.12
  4. Step 4: Simplify right side
    3,247.68x = 7,820,915.10
  5. Step 5: Solve for x
    x = 7,820,915.10/3,247.68
  6. Step 6: Final answer
    x = 2,408.15

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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.