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Finding the Fourth Proportional to 3,857.63, 5,787.25 and 1,549.13

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Solution

The fourth proportional to 3,857.63, 5,787.25 and 1,549.13 is: 2,324.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.63 : 5,787.25 = 1,549.13 : x
  2. Step 2: Convert to fraction form
    3,857.63/5,787.25 = 1,549.13/x
  3. Step 3: Cross multiply
    3,857.63x = 5,787.25 × 1,549.13
  4. Step 4: Simplify right side
    3,857.63x = 8,965,169.78
  5. Step 5: Solve for x
    x = 8,965,169.78/3,857.63
  6. Step 6: Final answer
    x = 2,324.01

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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.