Home / 3,787.38-5,228.01-2,215.98

Finding the Fourth Proportional to 3,787.38, 5,228.01 and 2,215.98

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Solution

The fourth proportional to 3,787.38, 5,228.01 and 2,215.98 is: 3,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.38 : 5,228.01 = 2,215.98 : x
  2. Step 2: Convert to fraction form
    3,787.38/5,228.01 = 2,215.98/x
  3. Step 3: Cross multiply
    3,787.38x = 5,228.01 × 2,215.98
  4. Step 4: Simplify right side
    3,787.38x = 11,585,165.60
  5. Step 5: Solve for x
    x = 11,585,165.60/3,787.38
  6. Step 6: Final answer
    x = 3,058.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.