Home / 4,478.97-6,178.20-2,885.09

Finding the Fourth Proportional to 4,478.97, 6,178.20 and 2,885.09

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Solution

The fourth proportional to 4,478.97, 6,178.20 and 2,885.09 is: 3,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.97 : 6,178.20 = 2,885.09 : x
  2. Step 2: Convert to fraction form
    4,478.97/6,178.20 = 2,885.09/x
  3. Step 3: Cross multiply
    4,478.97x = 6,178.20 × 2,885.09
  4. Step 4: Simplify right side
    4,478.97x = 17,824,632.15
  5. Step 5: Solve for x
    x = 17,824,632.15/4,478.97
  6. Step 6: Final answer
    x = 3,979.63

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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.