Home / 3,787.41-5,226.78-2,108.76

Finding the Fourth Proportional to 3,787.41, 5,226.78 and 2,108.76

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Solution

The fourth proportional to 3,787.41, 5,226.78 and 2,108.76 is: 2,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.41 : 5,226.78 = 2,108.76 : x
  2. Step 2: Convert to fraction form
    3,787.41/5,226.78 = 2,108.76/x
  3. Step 3: Cross multiply
    3,787.41x = 5,226.78 × 2,108.76
  4. Step 4: Simplify right side
    3,787.41x = 11,022,024.59
  5. Step 5: Solve for x
    x = 11,022,024.59/3,787.41
  6. Step 6: Final answer
    x = 2,910.17

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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.