Home / 3,478.36-5,219.97-2,383.78

Finding the Fourth Proportional to 3,478.36, 5,219.97 and 2,383.78

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Solution

The fourth proportional to 3,478.36, 5,219.97 and 2,383.78 is: 3,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.36 : 5,219.97 = 2,383.78 : x
  2. Step 2: Convert to fraction form
    3,478.36/5,219.97 = 2,383.78/x
  3. Step 3: Cross multiply
    3,478.36x = 5,219.97 × 2,383.78
  4. Step 4: Simplify right side
    3,478.36x = 12,443,260.09
  5. Step 5: Solve for x
    x = 12,443,260.09/3,478.36
  6. Step 6: Final answer
    x = 3,577.34

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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.