Home / 3,108.11-4,662.15-2,187.77

Finding the Fourth Proportional to 3,108.11, 4,662.15 and 2,187.77

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Solution

The fourth proportional to 3,108.11, 4,662.15 and 2,187.77 is: 3,281.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.11 : 4,662.15 = 2,187.77 : x
  2. Step 2: Convert to fraction form
    3,108.11/4,662.15 = 2,187.77/x
  3. Step 3: Cross multiply
    3,108.11x = 4,662.15 × 2,187.77
  4. Step 4: Simplify right side
    3,108.11x = 10,199,688.59
  5. Step 5: Solve for x
    x = 10,199,688.59/3,108.11
  6. Step 6: Final answer
    x = 3,281.64

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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.