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Finding the Fourth Proportional to 7,786.02, 11,678.71 and 2,239.34

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Solution

The fourth proportional to 7,786.02, 11,678.71 and 2,239.34 is: 3,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.02 : 11,678.71 = 2,239.34 : x
  2. Step 2: Convert to fraction form
    7,786.02/11,678.71 = 2,239.34/x
  3. Step 3: Cross multiply
    7,786.02x = 11,678.71 × 2,239.34
  4. Step 4: Simplify right side
    7,786.02x = 26,152,591.25
  5. Step 5: Solve for x
    x = 26,152,591.25/7,786.02
  6. Step 6: Final answer
    x = 3,358.92

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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.