Home / 2,811.41-3,879.96-1,632.66

Finding the Fourth Proportional to 2,811.41, 3,879.96 and 1,632.66

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Solution

The fourth proportional to 2,811.41, 3,879.96 and 1,632.66 is: 2,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.41 : 3,879.96 = 1,632.66 : x
  2. Step 2: Convert to fraction form
    2,811.41/3,879.96 = 1,632.66/x
  3. Step 3: Cross multiply
    2,811.41x = 3,879.96 × 1,632.66
  4. Step 4: Simplify right side
    2,811.41x = 6,334,655.49
  5. Step 5: Solve for x
    x = 6,334,655.49/2,811.41
  6. Step 6: Final answer
    x = 2,253.20

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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.