Home / 3,202.80-4,420.35-2,318.28

Finding the Fourth Proportional to 3,202.80, 4,420.35 and 2,318.28

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Solution

The fourth proportional to 3,202.80, 4,420.35 and 2,318.28 is: 3,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.80 : 4,420.35 = 2,318.28 : x
  2. Step 2: Convert to fraction form
    3,202.80/4,420.35 = 2,318.28/x
  3. Step 3: Cross multiply
    3,202.80x = 4,420.35 × 2,318.28
  4. Step 4: Simplify right side
    3,202.80x = 10,247,609.00
  5. Step 5: Solve for x
    x = 10,247,609.00/3,202.80
  6. Step 6: Final answer
    x = 3,199.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.