Home / 5,411.09-8,113.39-1,949.15

Finding the Fourth Proportional to 5,411.09, 8,113.39 and 1,949.15

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Solution

The fourth proportional to 5,411.09, 8,113.39 and 1,949.15 is: 2,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.09 : 8,113.39 = 1,949.15 : x
  2. Step 2: Convert to fraction form
    5,411.09/8,113.39 = 1,949.15/x
  3. Step 3: Cross multiply
    5,411.09x = 8,113.39 × 1,949.15
  4. Step 4: Simplify right side
    5,411.09x = 15,814,214.12
  5. Step 5: Solve for x
    x = 15,814,214.12/5,411.09
  6. Step 6: Final answer
    x = 2,922.56

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1.5x scale

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.