Home / 2,174.26-3,259.80-1,479.20

Finding the Fourth Proportional to 2,174.26, 3,259.80 and 1,479.20

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Solution

The fourth proportional to 2,174.26, 3,259.80 and 1,479.20 is: 2,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.26 : 3,259.80 = 1,479.20 : x
  2. Step 2: Convert to fraction form
    2,174.26/3,259.80 = 1,479.20/x
  3. Step 3: Cross multiply
    2,174.26x = 3,259.80 × 1,479.20
  4. Step 4: Simplify right side
    2,174.26x = 4,821,896.16
  5. Step 5: Solve for x
    x = 4,821,896.16/2,174.26
  6. Step 6: Final answer
    x = 2,217.72

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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.