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Finding the Fourth Proportional to 6,321.68, 8,722.03 and 4,081.51

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Solution

The fourth proportional to 6,321.68, 8,722.03 and 4,081.51 is: 5,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.68 : 8,722.03 = 4,081.51 : x
  2. Step 2: Convert to fraction form
    6,321.68/8,722.03 = 4,081.51/x
  3. Step 3: Cross multiply
    6,321.68x = 8,722.03 × 4,081.51
  4. Step 4: Simplify right side
    6,321.68x = 35,598,988.65
  5. Step 5: Solve for x
    x = 35,598,988.65/6,321.68
  6. Step 6: Final answer
    x = 5,631.26

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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.