Home / 6,688.20-9,229.64-3,704.02

Finding the Fourth Proportional to 6,688.20, 9,229.64 and 3,704.02

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Solution

The fourth proportional to 6,688.20, 9,229.64 and 3,704.02 is: 5,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.20 : 9,229.64 = 3,704.02 : x
  2. Step 2: Convert to fraction form
    6,688.20/9,229.64 = 3,704.02/x
  3. Step 3: Cross multiply
    6,688.20x = 9,229.64 × 3,704.02
  4. Step 4: Simplify right side
    6,688.20x = 34,186,771.15
  5. Step 5: Solve for x
    x = 34,186,771.15/6,688.20
  6. Step 6: Final answer
    x = 5,111.51

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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.