Home / 3,108.60-4,662.90-2,124.45

Finding the Fourth Proportional to 3,108.60, 4,662.90 and 2,124.45

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Solution

The fourth proportional to 3,108.60, 4,662.90 and 2,124.45 is: 3,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.60 : 4,662.90 = 2,124.45 : x
  2. Step 2: Convert to fraction form
    3,108.60/4,662.90 = 2,124.45/x
  3. Step 3: Cross multiply
    3,108.60x = 4,662.90 × 2,124.45
  4. Step 4: Simplify right side
    3,108.60x = 9,906,097.91
  5. Step 5: Solve for x
    x = 9,906,097.91/3,108.60
  6. Step 6: Final answer
    x = 3,186.68

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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.