Home / 6,531.94-8,979.39-5,620.12

Finding the Fourth Proportional to 6,531.94, 8,979.39 and 5,620.12

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Solution

The fourth proportional to 6,531.94, 8,979.39 and 5,620.12 is: 7,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.94 : 8,979.39 = 5,620.12 : x
  2. Step 2: Convert to fraction form
    6,531.94/8,979.39 = 5,620.12/x
  3. Step 3: Cross multiply
    6,531.94x = 8,979.39 × 5,620.12
  4. Step 4: Simplify right side
    6,531.94x = 50,465,249.33
  5. Step 5: Solve for x
    x = 50,465,249.33/6,531.94
  6. Step 6: Final answer
    x = 7,725.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.