Home / 4,143.96-6,210.81-1,921.46

Finding the Fourth Proportional to 4,143.96, 6,210.81 and 1,921.46

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Solution

The fourth proportional to 4,143.96, 6,210.81 and 1,921.46 is: 2,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.96 : 6,210.81 = 1,921.46 : x
  2. Step 2: Convert to fraction form
    4,143.96/6,210.81 = 1,921.46/x
  3. Step 3: Cross multiply
    4,143.96x = 6,210.81 × 1,921.46
  4. Step 4: Simplify right side
    4,143.96x = 11,933,791.93
  5. Step 5: Solve for x
    x = 11,933,791.93/4,143.96
  6. Step 6: Final answer
    x = 2,879.80

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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.