Home / 3,108.20-4,662.29-2,131.34

Finding the Fourth Proportional to 3,108.20, 4,662.29 and 2,131.34

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Solution

The fourth proportional to 3,108.20, 4,662.29 and 2,131.34 is: 3,197.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.20 : 4,662.29 = 2,131.34 : x
  2. Step 2: Convert to fraction form
    3,108.20/4,662.29 = 2,131.34/x
  3. Step 3: Cross multiply
    3,108.20x = 4,662.29 × 2,131.34
  4. Step 4: Simplify right side
    3,108.20x = 9,936,925.17
  5. Step 5: Solve for x
    x = 9,936,925.17/3,108.20
  6. Step 6: Final answer
    x = 3,197.00

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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.