Home / 3,943.19-5,911.13-2,091.53

Finding the Fourth Proportional to 3,943.19, 5,911.13 and 2,091.53

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Solution

The fourth proportional to 3,943.19, 5,911.13 and 2,091.53 is: 3,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.19 : 5,911.13 = 2,091.53 : x
  2. Step 2: Convert to fraction form
    3,943.19/5,911.13 = 2,091.53/x
  3. Step 3: Cross multiply
    3,943.19x = 5,911.13 × 2,091.53
  4. Step 4: Simplify right side
    3,943.19x = 12,363,265.72
  5. Step 5: Solve for x
    x = 12,363,265.72/3,943.19
  6. Step 6: Final answer
    x = 3,135.35

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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.