Home / 7,789.47-11,683.82-2,858.79

Finding the Fourth Proportional to 7,789.47, 11,683.82 and 2,858.79

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Solution

The fourth proportional to 7,789.47, 11,683.82 and 2,858.79 is: 4,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.47 : 11,683.82 = 2,858.79 : x
  2. Step 2: Convert to fraction form
    7,789.47/11,683.82 = 2,858.79/x
  3. Step 3: Cross multiply
    7,789.47x = 11,683.82 × 2,858.79
  4. Step 4: Simplify right side
    7,789.47x = 33,401,630.70
  5. Step 5: Solve for x
    x = 33,401,630.70/7,789.47
  6. Step 6: Final answer
    x = 4,288.05

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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.