Home / 3,109.96-4,291.73-1,693.73

Finding the Fourth Proportional to 3,109.96, 4,291.73 and 1,693.73

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Solution

The fourth proportional to 3,109.96, 4,291.73 and 1,693.73 is: 2,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.96 : 4,291.73 = 1,693.73 : x
  2. Step 2: Convert to fraction form
    3,109.96/4,291.73 = 1,693.73/x
  3. Step 3: Cross multiply
    3,109.96x = 4,291.73 × 1,693.73
  4. Step 4: Simplify right side
    3,109.96x = 7,269,025.85
  5. Step 5: Solve for x
    x = 7,269,025.85/3,109.96
  6. Step 6: Final answer
    x = 2,337.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.