Home / 3,108.10-4,662.15-2,123.95

Finding the Fourth Proportional to 3,108.10, 4,662.15 and 2,123.95

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Solution

The fourth proportional to 3,108.10, 4,662.15 and 2,123.95 is: 3,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.10 : 4,662.15 = 2,123.95 : x
  2. Step 2: Convert to fraction form
    3,108.10/4,662.15 = 2,123.95/x
  3. Step 3: Cross multiply
    3,108.10x = 4,662.15 × 2,123.95
  4. Step 4: Simplify right side
    3,108.10x = 9,902,173.49
  5. Step 5: Solve for x
    x = 9,902,173.49/3,108.10
  6. Step 6: Final answer
    x = 3,185.93

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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.