Home / 2,166.40-3,245.76-1,479.04

Finding the Fourth Proportional to 2,166.40, 3,245.76 and 1,479.04

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Solution

The fourth proportional to 2,166.40, 3,245.76 and 1,479.04 is: 2,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.40 : 3,245.76 = 1,479.04 : x
  2. Step 2: Convert to fraction form
    2,166.40/3,245.76 = 1,479.04/x
  3. Step 3: Cross multiply
    2,166.40x = 3,245.76 × 1,479.04
  4. Step 4: Simplify right side
    2,166.40x = 4,800,608.87
  5. Step 5: Solve for x
    x = 4,800,608.87/2,166.40
  6. Step 6: Final answer
    x = 2,215.94

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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.