Home / 3,150.24-4,342.67-2,015.79

Finding the Fourth Proportional to 3,150.24, 4,342.67 and 2,015.79

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Solution

The fourth proportional to 3,150.24, 4,342.67 and 2,015.79 is: 2,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.24 : 4,342.67 = 2,015.79 : x
  2. Step 2: Convert to fraction form
    3,150.24/4,342.67 = 2,015.79/x
  3. Step 3: Cross multiply
    3,150.24x = 4,342.67 × 2,015.79
  4. Step 4: Simplify right side
    3,150.24x = 8,753,897.62
  5. Step 5: Solve for x
    x = 8,753,897.62/3,150.24
  6. Step 6: Final answer
    x = 2,778.80

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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.