Home / 3,787.89-5,226.49-2,215.68

Finding the Fourth Proportional to 3,787.89, 5,226.49 and 2,215.68

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Solution

The fourth proportional to 3,787.89, 5,226.49 and 2,215.68 is: 3,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.89 : 5,226.49 = 2,215.68 : x
  2. Step 2: Convert to fraction form
    3,787.89/5,226.49 = 2,215.68/x
  3. Step 3: Cross multiply
    3,787.89x = 5,226.49 × 2,215.68
  4. Step 4: Simplify right side
    3,787.89x = 11,580,229.36
  5. Step 5: Solve for x
    x = 11,580,229.36/3,787.89
  6. Step 6: Final answer
    x = 3,057.17

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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.