Home / 3,126.06-4,660.40-2,879.42

Finding the Fourth Proportional to 3,126.06, 4,660.40 and 2,879.42

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Solution

The fourth proportional to 3,126.06, 4,660.40 and 2,879.42 is: 4,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.06 : 4,660.40 = 2,879.42 : x
  2. Step 2: Convert to fraction form
    3,126.06/4,660.40 = 2,879.42/x
  3. Step 3: Cross multiply
    3,126.06x = 4,660.40 × 2,879.42
  4. Step 4: Simplify right side
    3,126.06x = 13,419,232.86
  5. Step 5: Solve for x
    x = 13,419,232.86/3,126.06
  6. Step 6: Final answer
    x = 4,292.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.