Home / 2,174.20-3,245.39-1,868.02

Finding the Fourth Proportional to 2,174.20, 3,245.39 and 1,868.02

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Solution

The fourth proportional to 2,174.20, 3,245.39 and 1,868.02 is: 2,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.20 : 3,245.39 = 1,868.02 : x
  2. Step 2: Convert to fraction form
    2,174.20/3,245.39 = 1,868.02/x
  3. Step 3: Cross multiply
    2,174.20x = 3,245.39 × 1,868.02
  4. Step 4: Simplify right side
    2,174.20x = 6,062,453.43
  5. Step 5: Solve for x
    x = 6,062,453.43/2,174.20
  6. Step 6: Final answer
    x = 2,788.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.