Home / 5,117.00-7,678.48-1,996.84

Finding the Fourth Proportional to 5,117.00, 7,678.48 and 1,996.84

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Solution

The fourth proportional to 5,117.00, 7,678.48 and 1,996.84 is: 2,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.00 : 7,678.48 = 1,996.84 : x
  2. Step 2: Convert to fraction form
    5,117.00/7,678.48 = 1,996.84/x
  3. Step 3: Cross multiply
    5,117.00x = 7,678.48 × 1,996.84
  4. Step 4: Simplify right side
    5,117.00x = 15,332,736.97
  5. Step 5: Solve for x
    x = 15,332,736.97/5,117.00
  6. Step 6: Final answer
    x = 2,996.43

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Double scale
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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.