Home / 3,118.62-4,675.74-1,269.18

Finding the Fourth Proportional to 3,118.62, 4,675.74 and 1,269.18

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Solution

The fourth proportional to 3,118.62, 4,675.74 and 1,269.18 is: 1,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.62 : 4,675.74 = 1,269.18 : x
  2. Step 2: Convert to fraction form
    3,118.62/4,675.74 = 1,269.18/x
  3. Step 3: Cross multiply
    3,118.62x = 4,675.74 × 1,269.18
  4. Step 4: Simplify right side
    3,118.62x = 5,934,355.69
  5. Step 5: Solve for x
    x = 5,934,355.69/3,118.62
  6. Step 6: Final answer
    x = 1,902.88

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1.5x scale

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.