Home / 5,388.60-7,436.21-2,998.56

Finding the Fourth Proportional to 5,388.60, 7,436.21 and 2,998.56

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Solution

The fourth proportional to 5,388.60, 7,436.21 and 2,998.56 is: 4,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.60 : 7,436.21 = 2,998.56 : x
  2. Step 2: Convert to fraction form
    5,388.60/7,436.21 = 2,998.56/x
  3. Step 3: Cross multiply
    5,388.60x = 7,436.21 × 2,998.56
  4. Step 4: Simplify right side
    5,388.60x = 22,297,947.94
  5. Step 5: Solve for x
    x = 22,297,947.94/5,388.60
  6. Step 6: Final answer
    x = 4,137.98

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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.