Home / 3,894.39-5,374.89-2,322.99

Finding the Fourth Proportional to 3,894.39, 5,374.89 and 2,322.99

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Solution

The fourth proportional to 3,894.39, 5,374.89 and 2,322.99 is: 3,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.39 : 5,374.89 = 2,322.99 : x
  2. Step 2: Convert to fraction form
    3,894.39/5,374.89 = 2,322.99/x
  3. Step 3: Cross multiply
    3,894.39x = 5,374.89 × 2,322.99
  4. Step 4: Simplify right side
    3,894.39x = 12,485,815.72
  5. Step 5: Solve for x
    x = 12,485,815.72/3,894.39
  6. Step 6: Final answer
    x = 3,206.10

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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.