Home / 7,789.41-11,685.74-2,858.85

Finding the Fourth Proportional to 7,789.41, 11,685.74 and 2,858.85

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Solution

The fourth proportional to 7,789.41, 11,685.74 and 2,858.85 is: 4,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.41 : 11,685.74 = 2,858.85 : x
  2. Step 2: Convert to fraction form
    7,789.41/11,685.74 = 2,858.85/x
  3. Step 3: Cross multiply
    7,789.41x = 11,685.74 × 2,858.85
  4. Step 4: Simplify right side
    7,789.41x = 33,407,763.50
  5. Step 5: Solve for x
    x = 33,407,763.50/7,789.41
  6. Step 6: Final answer
    x = 4,288.87

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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.