Home / 3,787.86-5,682.26-1,255.06

Finding the Fourth Proportional to 3,787.86, 5,682.26 and 1,255.06

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Solution

The fourth proportional to 3,787.86, 5,682.26 and 1,255.06 is: 1,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.86 : 5,682.26 = 1,255.06 : x
  2. Step 2: Convert to fraction form
    3,787.86/5,682.26 = 1,255.06/x
  3. Step 3: Cross multiply
    3,787.86x = 5,682.26 × 1,255.06
  4. Step 4: Simplify right side
    3,787.86x = 7,131,577.24
  5. Step 5: Solve for x
    x = 7,131,577.24/3,787.86
  6. Step 6: Final answer
    x = 1,882.75

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1.5x scale

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.