Home / 3,660.25-5,490.42-1,351.75

Finding the Fourth Proportional to 3,660.25, 5,490.42 and 1,351.75

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Solution

The fourth proportional to 3,660.25, 5,490.42 and 1,351.75 is: 2,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.25 : 5,490.42 = 1,351.75 : x
  2. Step 2: Convert to fraction form
    3,660.25/5,490.42 = 1,351.75/x
  3. Step 3: Cross multiply
    3,660.25x = 5,490.42 × 1,351.75
  4. Step 4: Simplify right side
    3,660.25x = 7,421,675.24
  5. Step 5: Solve for x
    x = 7,421,675.24/3,660.25
  6. Step 6: Final answer
    x = 2,027.64

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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.