Home / 6,857.87-9,464.63-3,873.89

Finding the Fourth Proportional to 6,857.87, 9,464.63 and 3,873.89

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Solution

The fourth proportional to 6,857.87, 9,464.63 and 3,873.89 is: 5,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857.87 : 9,464.63 = 3,873.89 : x
  2. Step 2: Convert to fraction form
    6,857.87/9,464.63 = 3,873.89/x
  3. Step 3: Cross multiply
    6,857.87x = 9,464.63 × 3,873.89
  4. Step 4: Simplify right side
    6,857.87x = 36,664,973.39
  5. Step 5: Solve for x
    x = 36,664,973.39/6,857.87
  6. Step 6: Final answer
    x = 5,346.41

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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.