Home / 6,278.44-9,418.52-2,119.62

Finding the Fourth Proportional to 6,278.44, 9,418.52 and 2,119.62

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Solution

The fourth proportional to 6,278.44, 9,418.52 and 2,119.62 is: 3,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.44 : 9,418.52 = 2,119.62 : x
  2. Step 2: Convert to fraction form
    6,278.44/9,418.52 = 2,119.62/x
  3. Step 3: Cross multiply
    6,278.44x = 9,418.52 × 2,119.62
  4. Step 4: Simplify right side
    6,278.44x = 19,963,683.36
  5. Step 5: Solve for x
    x = 19,963,683.36/6,278.44
  6. Step 6: Final answer
    x = 3,179.72

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1.5x scale

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.