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Finding the Fourth Proportional to 6,665.94, 9,997.88 and 2,223.68

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Solution

The fourth proportional to 6,665.94, 9,997.88 and 2,223.68 is: 3,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.94 : 9,997.88 = 2,223.68 : x
  2. Step 2: Convert to fraction form
    6,665.94/9,997.88 = 2,223.68/x
  3. Step 3: Cross multiply
    6,665.94x = 9,997.88 × 2,223.68
  4. Step 4: Simplify right side
    6,665.94x = 22,232,085.80
  5. Step 5: Solve for x
    x = 22,232,085.80/6,665.94
  6. Step 6: Final answer
    x = 3,335.18

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Similar ratio
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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.