Home / 3,121.22-4,675.54-1,479.35

Finding the Fourth Proportional to 3,121.22, 4,675.54 and 1,479.35

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Solution

The fourth proportional to 3,121.22, 4,675.54 and 1,479.35 is: 2,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.22 : 4,675.54 = 1,479.35 : x
  2. Step 2: Convert to fraction form
    3,121.22/4,675.54 = 1,479.35/x
  3. Step 3: Cross multiply
    3,121.22x = 4,675.54 × 1,479.35
  4. Step 4: Simplify right side
    3,121.22x = 6,916,760.10
  5. Step 5: Solve for x
    x = 6,916,760.10/3,121.22
  6. Step 6: Final answer
    x = 2,216.04

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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.