Home / 3,174.90-4,375.35-2,289.12

Finding the Fourth Proportional to 3,174.90, 4,375.35 and 2,289.12

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Solution

The fourth proportional to 3,174.90, 4,375.35 and 2,289.12 is: 3,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.90 : 4,375.35 = 2,289.12 : x
  2. Step 2: Convert to fraction form
    3,174.90/4,375.35 = 2,289.12/x
  3. Step 3: Cross multiply
    3,174.90x = 4,375.35 × 2,289.12
  4. Step 4: Simplify right side
    3,174.90x = 10,015,701.19
  5. Step 5: Solve for x
    x = 10,015,701.19/3,174.90
  6. Step 6: Final answer
    x = 3,154.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.