Home / 3,342.20-5,011.74-1,879.40

Finding the Fourth Proportional to 3,342.20, 5,011.74 and 1,879.40

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Solution

The fourth proportional to 3,342.20, 5,011.74 and 1,879.40 is: 2,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.20 : 5,011.74 = 1,879.40 : x
  2. Step 2: Convert to fraction form
    3,342.20/5,011.74 = 1,879.40/x
  3. Step 3: Cross multiply
    3,342.20x = 5,011.74 × 1,879.40
  4. Step 4: Simplify right side
    3,342.20x = 9,419,064.16
  5. Step 5: Solve for x
    x = 9,419,064.16/3,342.20
  6. Step 6: Final answer
    x = 2,818.22

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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.