Home / 7,789.48-11,677.27-2,857.97

Finding the Fourth Proportional to 7,789.48, 11,677.27 and 2,857.97

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Solution

The fourth proportional to 7,789.48, 11,677.27 and 2,857.97 is: 4,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.48 : 11,677.27 = 2,857.97 : x
  2. Step 2: Convert to fraction form
    7,789.48/11,677.27 = 2,857.97/x
  3. Step 3: Cross multiply
    7,789.48x = 11,677.27 × 2,857.97
  4. Step 4: Simplify right side
    7,789.48x = 33,373,287.34
  5. Step 5: Solve for x
    x = 33,373,287.34/7,789.48
  6. Step 6: Final answer
    x = 4,284.41

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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.