Home / 3,840.84-5,761.38-1,375.56

Finding the Fourth Proportional to 3,840.84, 5,761.38 and 1,375.56

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Solution

The fourth proportional to 3,840.84, 5,761.38 and 1,375.56 is: 2,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.84 : 5,761.38 = 1,375.56 : x
  2. Step 2: Convert to fraction form
    3,840.84/5,761.38 = 1,375.56/x
  3. Step 3: Cross multiply
    3,840.84x = 5,761.38 × 1,375.56
  4. Step 4: Simplify right side
    3,840.84x = 7,925,123.87
  5. Step 5: Solve for x
    x = 7,925,123.87/3,840.84
  6. Step 6: Final answer
    x = 2,063.38

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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.