Home / 6,280.36-9,419.64-2,119.82

Finding the Fourth Proportional to 6,280.36, 9,419.64 and 2,119.82

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Solution

The fourth proportional to 6,280.36, 9,419.64 and 2,119.82 is: 3,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.36 : 9,419.64 = 2,119.82 : x
  2. Step 2: Convert to fraction form
    6,280.36/9,419.64 = 2,119.82/x
  3. Step 3: Cross multiply
    6,280.36x = 9,419.64 × 2,119.82
  4. Step 4: Simplify right side
    6,280.36x = 19,967,951.13
  5. Step 5: Solve for x
    x = 19,967,951.13/6,280.36
  6. Step 6: Final answer
    x = 3,179.43

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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.