Home / 3,411.08-5,114.52-3,121.02

Finding the Fourth Proportional to 3,411.08, 5,114.52 and 3,121.02

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Solution

The fourth proportional to 3,411.08, 5,114.52 and 3,121.02 is: 4,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.08 : 5,114.52 = 3,121.02 : x
  2. Step 2: Convert to fraction form
    3,411.08/5,114.52 = 3,121.02/x
  3. Step 3: Cross multiply
    3,411.08x = 5,114.52 × 3,121.02
  4. Step 4: Simplify right side
    3,411.08x = 15,962,519.21
  5. Step 5: Solve for x
    x = 15,962,519.21/3,411.08
  6. Step 6: Final answer
    x = 4,679.61

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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.