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Finding the Fourth Proportional to 6,722.56, 9,277.22 and 3,738.65

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Solution

The fourth proportional to 6,722.56, 9,277.22 and 3,738.65 is: 5,159.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.56 : 9,277.22 = 3,738.65 : x
  2. Step 2: Convert to fraction form
    6,722.56/9,277.22 = 3,738.65/x
  3. Step 3: Cross multiply
    6,722.56x = 9,277.22 × 3,738.65
  4. Step 4: Simplify right side
    6,722.56x = 34,684,259.86
  5. Step 5: Solve for x
    x = 34,684,259.86/6,722.56
  6. Step 6: Final answer
    x = 5,159.39

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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.