Home / 3,787.10-5,681.76-1,322.11

Finding the Fourth Proportional to 3,787.10, 5,681.76 and 1,322.11

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Solution

The fourth proportional to 3,787.10, 5,681.76 and 1,322.11 is: 1,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.10 : 5,681.76 = 1,322.11 : x
  2. Step 2: Convert to fraction form
    3,787.10/5,681.76 = 1,322.11/x
  3. Step 3: Cross multiply
    3,787.10x = 5,681.76 × 1,322.11
  4. Step 4: Simplify right side
    3,787.10x = 7,511,907.73
  5. Step 5: Solve for x
    x = 7,511,907.73/3,787.10
  6. Step 6: Final answer
    x = 1,983.55

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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.