Home / 3,311.39-4,569.79-1,819.42

Finding the Fourth Proportional to 3,311.39, 4,569.79 and 1,819.42

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Solution

The fourth proportional to 3,311.39, 4,569.79 and 1,819.42 is: 2,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.39 : 4,569.79 = 1,819.42 : x
  2. Step 2: Convert to fraction form
    3,311.39/4,569.79 = 1,819.42/x
  3. Step 3: Cross multiply
    3,311.39x = 4,569.79 × 1,819.42
  4. Step 4: Simplify right side
    3,311.39x = 8,314,344.47
  5. Step 5: Solve for x
    x = 8,314,344.47/3,311.39
  6. Step 6: Final answer
    x = 2,510.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.