Home / 3,839.81-5,771.06-3,185.92

Finding the Fourth Proportional to 3,839.81, 5,771.06 and 3,185.92

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Solution

The fourth proportional to 3,839.81, 5,771.06 and 3,185.92 is: 4,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.81 : 5,771.06 = 3,185.92 : x
  2. Step 2: Convert to fraction form
    3,839.81/5,771.06 = 3,185.92/x
  3. Step 3: Cross multiply
    3,839.81x = 5,771.06 × 3,185.92
  4. Step 4: Simplify right side
    3,839.81x = 18,386,156.63
  5. Step 5: Solve for x
    x = 18,386,156.63/3,839.81
  6. Step 6: Final answer
    x = 4,788.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.