Home / 3,118.92-4,678.68-1,475.04

Finding the Fourth Proportional to 3,118.92, 4,678.68 and 1,475.04

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Solution

The fourth proportional to 3,118.92, 4,678.68 and 1,475.04 is: 2,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.92 : 4,678.68 = 1,475.04 : x
  2. Step 2: Convert to fraction form
    3,118.92/4,678.68 = 1,475.04/x
  3. Step 3: Cross multiply
    3,118.92x = 4,678.68 × 1,475.04
  4. Step 4: Simplify right side
    3,118.92x = 6,901,240.15
  5. Step 5: Solve for x
    x = 6,901,240.15/3,118.92
  6. Step 6: Final answer
    x = 2,212.70

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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.