Home / 3,119.17-4,675.20-1,269.40

Finding the Fourth Proportional to 3,119.17, 4,675.20 and 1,269.40

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Solution

The fourth proportional to 3,119.17, 4,675.20 and 1,269.40 is: 1,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.17 : 4,675.20 = 1,269.40 : x
  2. Step 2: Convert to fraction form
    3,119.17/4,675.20 = 1,269.40/x
  3. Step 3: Cross multiply
    3,119.17x = 4,675.20 × 1,269.40
  4. Step 4: Simplify right side
    3,119.17x = 5,934,698.88
  5. Step 5: Solve for x
    x = 5,934,698.88/3,119.17
  6. Step 6: Final answer
    x = 1,902.65

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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.