Home / 5,179.48-7,777.86-3,403.48

Finding the Fourth Proportional to 5,179.48, 7,777.86 and 3,403.48

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Solution

The fourth proportional to 5,179.48, 7,777.86 and 3,403.48 is: 5,110.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.48 : 7,777.86 = 3,403.48 : x
  2. Step 2: Convert to fraction form
    5,179.48/7,777.86 = 3,403.48/x
  3. Step 3: Cross multiply
    5,179.48x = 7,777.86 × 3,403.48
  4. Step 4: Simplify right side
    5,179.48x = 26,471,790.95
  5. Step 5: Solve for x
    x = 26,471,790.95/5,179.48
  6. Step 6: Final answer
    x = 5,110.90

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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.