Home / 3,297.20-4,938.60-1,996.40

Finding the Fourth Proportional to 3,297.20, 4,938.60 and 1,996.40

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Solution

The fourth proportional to 3,297.20, 4,938.60 and 1,996.40 is: 2,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.20 : 4,938.60 = 1,996.40 : x
  2. Step 2: Convert to fraction form
    3,297.20/4,938.60 = 1,996.40/x
  3. Step 3: Cross multiply
    3,297.20x = 4,938.60 × 1,996.40
  4. Step 4: Simplify right side
    3,297.20x = 9,859,421.04
  5. Step 5: Solve for x
    x = 9,859,421.04/3,297.20
  6. Step 6: Final answer
    x = 2,990.24

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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.