Home / 3,844.13-5,768.64-1,378.89

Finding the Fourth Proportional to 3,844.13, 5,768.64 and 1,378.89

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Solution

The fourth proportional to 3,844.13, 5,768.64 and 1,378.89 is: 2,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.13 : 5,768.64 = 1,378.89 : x
  2. Step 2: Convert to fraction form
    3,844.13/5,768.64 = 1,378.89/x
  3. Step 3: Cross multiply
    3,844.13x = 5,768.64 × 1,378.89
  4. Step 4: Simplify right side
    3,844.13x = 7,954,320.01
  5. Step 5: Solve for x
    x = 7,954,320.01/3,844.13
  6. Step 6: Final answer
    x = 2,069.21

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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.