Home / 2,879.56-3,972.18-1,946.44

Finding the Fourth Proportional to 2,879.56, 3,972.18 and 1,946.44

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Solution

The fourth proportional to 2,879.56, 3,972.18 and 1,946.44 is: 2,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.56 : 3,972.18 = 1,946.44 : x
  2. Step 2: Convert to fraction form
    2,879.56/3,972.18 = 1,946.44/x
  3. Step 3: Cross multiply
    2,879.56x = 3,972.18 × 1,946.44
  4. Step 4: Simplify right side
    2,879.56x = 7,731,610.04
  5. Step 5: Solve for x
    x = 7,731,610.04/2,879.56
  6. Step 6: Final answer
    x = 2,685.00

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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.