Home / 6,513.28-8,979.87-4,151.32

Finding the Fourth Proportional to 6,513.28, 8,979.87 and 4,151.32

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Solution

The fourth proportional to 6,513.28, 8,979.87 and 4,151.32 is: 5,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.28 : 8,979.87 = 4,151.32 : x
  2. Step 2: Convert to fraction form
    6,513.28/8,979.87 = 4,151.32/x
  3. Step 3: Cross multiply
    6,513.28x = 8,979.87 × 4,151.32
  4. Step 4: Simplify right side
    6,513.28x = 37,278,313.93
  5. Step 5: Solve for x
    x = 37,278,313.93/6,513.28
  6. Step 6: Final answer
    x = 5,723.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.