Home / 3,937.54-5,428.56-3,375.58

Finding the Fourth Proportional to 3,937.54, 5,428.56 and 3,375.58

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Solution

The fourth proportional to 3,937.54, 5,428.56 and 3,375.58 is: 4,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.54 : 5,428.56 = 3,375.58 : x
  2. Step 2: Convert to fraction form
    3,937.54/5,428.56 = 3,375.58/x
  3. Step 3: Cross multiply
    3,937.54x = 5,428.56 × 3,375.58
  4. Step 4: Simplify right side
    3,937.54x = 18,324,538.56
  5. Step 5: Solve for x
    x = 18,324,538.56/3,937.54
  6. Step 6: Final answer
    x = 4,653.80

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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.