Home / 3,311.05-4,569.28-1,819.11

Finding the Fourth Proportional to 3,311.05, 4,569.28 and 1,819.11

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Solution

The fourth proportional to 3,311.05, 4,569.28 and 1,819.11 is: 2,510.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.05 : 4,569.28 = 1,819.11 : x
  2. Step 2: Convert to fraction form
    3,311.05/4,569.28 = 1,819.11/x
  3. Step 3: Cross multiply
    3,311.05x = 4,569.28 × 1,819.11
  4. Step 4: Simplify right side
    3,311.05x = 8,312,022.94
  5. Step 5: Solve for x
    x = 8,312,022.94/3,311.05
  6. Step 6: Final answer
    x = 2,510.39

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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.