Home / 3,388.52-5,084.28-2,155.60

Finding the Fourth Proportional to 3,388.52, 5,084.28 and 2,155.60

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Solution

The fourth proportional to 3,388.52, 5,084.28 and 2,155.60 is: 3,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.52 : 5,084.28 = 2,155.60 : x
  2. Step 2: Convert to fraction form
    3,388.52/5,084.28 = 2,155.60/x
  3. Step 3: Cross multiply
    3,388.52x = 5,084.28 × 2,155.60
  4. Step 4: Simplify right side
    3,388.52x = 10,959,673.97
  5. Step 5: Solve for x
    x = 10,959,673.97/3,388.52
  6. Step 6: Final answer
    x = 3,234.35

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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.