Home / 7,790.93-11,686.39-2,858.70

Finding the Fourth Proportional to 7,790.93, 11,686.39 and 2,858.70

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Solution

The fourth proportional to 7,790.93, 11,686.39 and 2,858.70 is: 4,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.93 : 11,686.39 = 2,858.70 : x
  2. Step 2: Convert to fraction form
    7,790.93/11,686.39 = 2,858.70/x
  3. Step 3: Cross multiply
    7,790.93x = 11,686.39 × 2,858.70
  4. Step 4: Simplify right side
    7,790.93x = 33,407,883.09
  5. Step 5: Solve for x
    x = 33,407,883.09/7,790.93
  6. Step 6: Final answer
    x = 4,288.05

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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.