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Finding the Fourth Proportional to 3,018.97, 4,165.78 and 1,839.81

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Solution

The fourth proportional to 3,018.97, 4,165.78 and 1,839.81 is: 2,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.97 : 4,165.78 = 1,839.81 : x
  2. Step 2: Convert to fraction form
    3,018.97/4,165.78 = 1,839.81/x
  3. Step 3: Cross multiply
    3,018.97x = 4,165.78 × 1,839.81
  4. Step 4: Simplify right side
    3,018.97x = 7,664,258.17
  5. Step 5: Solve for x
    x = 7,664,258.17/3,018.97
  6. Step 6: Final answer
    x = 2,538.70

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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.