Home / 6,830.32-9,426.78-3,847.36

Finding the Fourth Proportional to 6,830.32, 9,426.78 and 3,847.36

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Solution

The fourth proportional to 6,830.32, 9,426.78 and 3,847.36 is: 5,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,830.32 : 9,426.78 = 3,847.36 : x
  2. Step 2: Convert to fraction form
    6,830.32/9,426.78 = 3,847.36/x
  3. Step 3: Cross multiply
    6,830.32x = 9,426.78 × 3,847.36
  4. Step 4: Simplify right side
    6,830.32x = 36,268,216.30
  5. Step 5: Solve for x
    x = 36,268,216.30/6,830.32
  6. Step 6: Final answer
    x = 5,309.89

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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.