Home / 7,785.26-11,678.64-2,853.71

Finding the Fourth Proportional to 7,785.26, 11,678.64 and 2,853.71

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Solution

The fourth proportional to 7,785.26, 11,678.64 and 2,853.71 is: 4,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.26 : 11,678.64 = 2,853.71 : x
  2. Step 2: Convert to fraction form
    7,785.26/11,678.64 = 2,853.71/x
  3. Step 3: Cross multiply
    7,785.26x = 11,678.64 × 2,853.71
  4. Step 4: Simplify right side
    7,785.26x = 33,327,451.75
  5. Step 5: Solve for x
    x = 33,327,451.75/7,785.26
  6. Step 6: Final answer
    x = 4,280.84

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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.