Home / 6,622.20-9,938.90-2,729.40

Finding the Fourth Proportional to 6,622.20, 9,938.90 and 2,729.40

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Solution

The fourth proportional to 6,622.20, 9,938.90 and 2,729.40 is: 4,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.20 : 9,938.90 = 2,729.40 : x
  2. Step 2: Convert to fraction form
    6,622.20/9,938.90 = 2,729.40/x
  3. Step 3: Cross multiply
    6,622.20x = 9,938.90 × 2,729.40
  4. Step 4: Simplify right side
    6,622.20x = 27,127,233.66
  5. Step 5: Solve for x
    x = 27,127,233.66/6,622.20
  6. Step 6: Final answer
    x = 4,096.41

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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.