Home / 3,165.72-4,750.29-1,318.11

Finding the Fourth Proportional to 3,165.72, 4,750.29 and 1,318.11

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Solution

The fourth proportional to 3,165.72, 4,750.29 and 1,318.11 is: 1,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.72 : 4,750.29 = 1,318.11 : x
  2. Step 2: Convert to fraction form
    3,165.72/4,750.29 = 1,318.11/x
  3. Step 3: Cross multiply
    3,165.72x = 4,750.29 × 1,318.11
  4. Step 4: Simplify right side
    3,165.72x = 6,261,404.75
  5. Step 5: Solve for x
    x = 6,261,404.75/3,165.72
  6. Step 6: Final answer
    x = 1,977.88

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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.