Home / 3,811.90-5,262.96-2,926.12

Finding the Fourth Proportional to 3,811.90, 5,262.96 and 2,926.12

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Solution

The fourth proportional to 3,811.90, 5,262.96 and 2,926.12 is: 4,039.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.90 : 5,262.96 = 2,926.12 : x
  2. Step 2: Convert to fraction form
    3,811.90/5,262.96 = 2,926.12/x
  3. Step 3: Cross multiply
    3,811.90x = 5,262.96 × 2,926.12
  4. Step 4: Simplify right side
    3,811.90x = 15,400,052.52
  5. Step 5: Solve for x
    x = 15,400,052.52/3,811.90
  6. Step 6: Final answer
    x = 4,039.99

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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.