Home / 6,620.23-9,934.67-3,157.75

Finding the Fourth Proportional to 6,620.23, 9,934.67 and 3,157.75

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Solution

The fourth proportional to 6,620.23, 9,934.67 and 3,157.75 is: 4,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.23 : 9,934.67 = 3,157.75 : x
  2. Step 2: Convert to fraction form
    6,620.23/9,934.67 = 3,157.75/x
  3. Step 3: Cross multiply
    6,620.23x = 9,934.67 × 3,157.75
  4. Step 4: Simplify right side
    6,620.23x = 31,371,204.19
  5. Step 5: Solve for x
    x = 31,371,204.19/6,620.23
  6. Step 6: Final answer
    x = 4,738.69

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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.