Home / 3,108.12-4,662.90-1,628.14

Finding the Fourth Proportional to 3,108.12, 4,662.90 and 1,628.14

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Solution

The fourth proportional to 3,108.12, 4,662.90 and 1,628.14 is: 2,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.12 : 4,662.90 = 1,628.14 : x
  2. Step 2: Convert to fraction form
    3,108.12/4,662.90 = 1,628.14/x
  3. Step 3: Cross multiply
    3,108.12x = 4,662.90 × 1,628.14
  4. Step 4: Simplify right side
    3,108.12x = 7,591,854.01
  5. Step 5: Solve for x
    x = 7,591,854.01/3,108.12
  6. Step 6: Final answer
    x = 2,442.59

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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.