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Finding the Fourth Proportional to 3,895.84, 5,843.64 and 1,298.71

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Solution

The fourth proportional to 3,895.84, 5,843.64 and 1,298.71 is: 1,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.84 : 5,843.64 = 1,298.71 : x
  2. Step 2: Convert to fraction form
    3,895.84/5,843.64 = 1,298.71/x
  3. Step 3: Cross multiply
    3,895.84x = 5,843.64 × 1,298.71
  4. Step 4: Simplify right side
    3,895.84x = 7,589,193.70
  5. Step 5: Solve for x
    x = 7,589,193.70/3,895.84
  6. Step 6: Final answer
    x = 1,948.02

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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.