Home / 3,151.35-4,727.03-2,811.15

Finding the Fourth Proportional to 3,151.35, 4,727.03 and 2,811.15

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Solution

The fourth proportional to 3,151.35, 4,727.03 and 2,811.15 is: 4,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.35 : 4,727.03 = 2,811.15 : x
  2. Step 2: Convert to fraction form
    3,151.35/4,727.03 = 2,811.15/x
  3. Step 3: Cross multiply
    3,151.35x = 4,727.03 × 2,811.15
  4. Step 4: Simplify right side
    3,151.35x = 13,288,376.33
  5. Step 5: Solve for x
    x = 13,288,376.33/3,151.35
  6. Step 6: Final answer
    x = 4,216.73

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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.