Home / 6,688.42-9,229.86-3,704.20

Finding the Fourth Proportional to 6,688.42, 9,229.86 and 3,704.20

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Solution

The fourth proportional to 6,688.42, 9,229.86 and 3,704.20 is: 5,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.42 : 9,229.86 = 3,704.20 : x
  2. Step 2: Convert to fraction form
    6,688.42/9,229.86 = 3,704.20/x
  3. Step 3: Cross multiply
    6,688.42x = 9,229.86 × 3,704.20
  4. Step 4: Simplify right side
    6,688.42x = 34,189,247.41
  5. Step 5: Solve for x
    x = 34,189,247.41/6,688.42
  6. Step 6: Final answer
    x = 5,111.71

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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.