Home / 2,202.20-3,303.30-1,986.20

Finding the Fourth Proportional to 2,202.20, 3,303.30 and 1,986.20

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Solution

The fourth proportional to 2,202.20, 3,303.30 and 1,986.20 is: 2,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.20 : 3,303.30 = 1,986.20 : x
  2. Step 2: Convert to fraction form
    2,202.20/3,303.30 = 1,986.20/x
  3. Step 3: Cross multiply
    2,202.20x = 3,303.30 × 1,986.20
  4. Step 4: Simplify right side
    2,202.20x = 6,561,014.46
  5. Step 5: Solve for x
    x = 6,561,014.46/2,202.20
  6. Step 6: Final answer
    x = 2,979.30

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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.