Home / 3,787.59-5,681.33-1,155.09

Finding the Fourth Proportional to 3,787.59, 5,681.33 and 1,155.09

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Solution

The fourth proportional to 3,787.59, 5,681.33 and 1,155.09 is: 1,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.59 : 5,681.33 = 1,155.09 : x
  2. Step 2: Convert to fraction form
    3,787.59/5,681.33 = 1,155.09/x
  3. Step 3: Cross multiply
    3,787.59x = 5,681.33 × 1,155.09
  4. Step 4: Simplify right side
    3,787.59x = 6,562,441.69
  5. Step 5: Solve for x
    x = 6,562,441.69/3,787.59
  6. Step 6: Final answer
    x = 1,732.62

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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.