Home / 5,376.78-7,422.57-3,388.43

Finding the Fourth Proportional to 5,376.78, 7,422.57 and 3,388.43

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Solution

The fourth proportional to 5,376.78, 7,422.57 and 3,388.43 is: 4,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.78 : 7,422.57 = 3,388.43 : x
  2. Step 2: Convert to fraction form
    5,376.78/7,422.57 = 3,388.43/x
  3. Step 3: Cross multiply
    5,376.78x = 7,422.57 × 3,388.43
  4. Step 4: Simplify right side
    5,376.78x = 25,150,877.42
  5. Step 5: Solve for x
    x = 25,150,877.42/5,376.78
  6. Step 6: Final answer
    x = 4,677.68

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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.