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Finding the Fourth Proportional to 6,881.22, 9,490.50 and 4,223.88

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Solution

The fourth proportional to 6,881.22, 9,490.50 and 4,223.88 is: 5,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.22 : 9,490.50 = 4,223.88 : x
  2. Step 2: Convert to fraction form
    6,881.22/9,490.50 = 4,223.88/x
  3. Step 3: Cross multiply
    6,881.22x = 9,490.50 × 4,223.88
  4. Step 4: Simplify right side
    6,881.22x = 40,086,733.14
  5. Step 5: Solve for x
    x = 40,086,733.14/6,881.22
  6. Step 6: Final answer
    x = 5,825.53

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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.