Home / 3,207.90-4,812.30-1,563.11

Finding the Fourth Proportional to 3,207.90, 4,812.30 and 1,563.11

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Solution

The fourth proportional to 3,207.90, 4,812.30 and 1,563.11 is: 2,344.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.90 : 4,812.30 = 1,563.11 : x
  2. Step 2: Convert to fraction form
    3,207.90/4,812.30 = 1,563.11/x
  3. Step 3: Cross multiply
    3,207.90x = 4,812.30 × 1,563.11
  4. Step 4: Simplify right side
    3,207.90x = 7,522,130.19
  5. Step 5: Solve for x
    x = 7,522,130.19/3,207.90
  6. Step 6: Final answer
    x = 2,344.88

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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.