Home / 3,860.60-5,787.44-1,394.84

Finding the Fourth Proportional to 3,860.60, 5,787.44 and 1,394.84

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Solution

The fourth proportional to 3,860.60, 5,787.44 and 1,394.84 is: 2,091.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.60 : 5,787.44 = 1,394.84 : x
  2. Step 2: Convert to fraction form
    3,860.60/5,787.44 = 1,394.84/x
  3. Step 3: Cross multiply
    3,860.60x = 5,787.44 × 1,394.84
  4. Step 4: Simplify right side
    3,860.60x = 8,072,545.84
  5. Step 5: Solve for x
    x = 8,072,545.84/3,860.60
  6. Step 6: Final answer
    x = 2,091.01

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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.