Home / 3,787.68-5,226.66-2,131.68

Finding the Fourth Proportional to 3,787.68, 5,226.66 and 2,131.68

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Solution

The fourth proportional to 3,787.68, 5,226.66 and 2,131.68 is: 2,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.68 : 5,226.66 = 2,131.68 : x
  2. Step 2: Convert to fraction form
    3,787.68/5,226.66 = 2,131.68/x
  3. Step 3: Cross multiply
    3,787.68x = 5,226.66 × 2,131.68
  4. Step 4: Simplify right side
    3,787.68x = 11,141,566.59
  5. Step 5: Solve for x
    x = 11,141,566.59/3,787.68
  6. Step 6: Final answer
    x = 2,941.53

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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.