Home / 3,150.86-4,348.40-2,086.79

Finding the Fourth Proportional to 3,150.86, 4,348.40 and 2,086.79

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Solution

The fourth proportional to 3,150.86, 4,348.40 and 2,086.79 is: 2,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.86 : 4,348.40 = 2,086.79 : x
  2. Step 2: Convert to fraction form
    3,150.86/4,348.40 = 2,086.79/x
  3. Step 3: Cross multiply
    3,150.86x = 4,348.40 × 2,086.79
  4. Step 4: Simplify right side
    3,150.86x = 9,074,197.64
  5. Step 5: Solve for x
    x = 9,074,197.64/3,150.86
  6. Step 6: Final answer
    x = 2,879.91

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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.