Home / 6,979.28-9,631.04-3,834.86

Finding the Fourth Proportional to 6,979.28, 9,631.04 and 3,834.86

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Solution

The fourth proportional to 6,979.28, 9,631.04 and 3,834.86 is: 5,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.28 : 9,631.04 = 3,834.86 : x
  2. Step 2: Convert to fraction form
    6,979.28/9,631.04 = 3,834.86/x
  3. Step 3: Cross multiply
    6,979.28x = 9,631.04 × 3,834.86
  4. Step 4: Simplify right side
    6,979.28x = 36,933,690.05
  5. Step 5: Solve for x
    x = 36,933,690.05/6,979.28
  6. Step 6: Final answer
    x = 5,291.91

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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.