Home / 3,207.28-4,812-1,563.52

Finding the Fourth Proportional to 3,207.28, 4,812 and 1,563.52

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Solution

The fourth proportional to 3,207.28, 4,812 and 1,563.52 is: 2,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.28 : 4,812 = 1,563.52 : x
  2. Step 2: Convert to fraction form
    3,207.28/4,812 = 1,563.52/x
  3. Step 3: Cross multiply
    3,207.28x = 4,812 × 1,563.52
  4. Step 4: Simplify right side
    3,207.28x = 7,523,658.24
  5. Step 5: Solve for x
    x = 7,523,658.24/3,207.28
  6. Step 6: Final answer
    x = 2,345.81

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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.