Home / 6,884.90-9,500.86-3,900.68

Finding the Fourth Proportional to 6,884.90, 9,500.86 and 3,900.68

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Solution

The fourth proportional to 6,884.90, 9,500.86 and 3,900.68 is: 5,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,884.90 : 9,500.86 = 3,900.68 : x
  2. Step 2: Convert to fraction form
    6,884.90/9,500.86 = 3,900.68/x
  3. Step 3: Cross multiply
    6,884.90x = 9,500.86 × 3,900.68
  4. Step 4: Simplify right side
    6,884.90x = 37,059,807.58
  5. Step 5: Solve for x
    x = 37,059,807.58/6,884.90
  6. Step 6: Final answer
    x = 5,382.76

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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.