Home / 3,858.57-5,787.86-2,709.45

Finding the Fourth Proportional to 3,858.57, 5,787.86 and 2,709.45

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Solution

The fourth proportional to 3,858.57, 5,787.86 and 2,709.45 is: 4,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.57 : 5,787.86 = 2,709.45 : x
  2. Step 2: Convert to fraction form
    3,858.57/5,787.86 = 2,709.45/x
  3. Step 3: Cross multiply
    3,858.57x = 5,787.86 × 2,709.45
  4. Step 4: Simplify right side
    3,858.57x = 15,681,903.73
  5. Step 5: Solve for x
    x = 15,681,903.73/3,858.57
  6. Step 6: Final answer
    x = 4,064.18

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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.