Home / 3,410.45-5,115.84-945.22

Finding the Fourth Proportional to 3,410.45, 5,115.84 and 945.22

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Solution

The fourth proportional to 3,410.45, 5,115.84 and 945.22 is: 1,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.45 : 5,115.84 = 945.22 : x
  2. Step 2: Convert to fraction form
    3,410.45/5,115.84 = 945.22/x
  3. Step 3: Cross multiply
    3,410.45x = 5,115.84 × 945.22
  4. Step 4: Simplify right side
    3,410.45x = 4,835,594.28
  5. Step 5: Solve for x
    x = 4,835,594.28/3,410.45
  6. Step 6: Final answer
    x = 1,417.88

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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.