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Finding the Fourth Proportional to 6,612.22, 9,920.15 and 3,494.87

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Solution

The fourth proportional to 6,612.22, 9,920.15 and 3,494.87 is: 5,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.22 : 9,920.15 = 3,494.87 : x
  2. Step 2: Convert to fraction form
    6,612.22/9,920.15 = 3,494.87/x
  3. Step 3: Cross multiply
    6,612.22x = 9,920.15 × 3,494.87
  4. Step 4: Simplify right side
    6,612.22x = 34,669,634.63
  5. Step 5: Solve for x
    x = 34,669,634.63/6,612.22
  6. Step 6: Final answer
    x = 5,243.27

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1.5x scale

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.