Home / 4,427.70-6,639.31-1,963.28

Finding the Fourth Proportional to 4,427.70, 6,639.31 and 1,963.28

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Solution

The fourth proportional to 4,427.70, 6,639.31 and 1,963.28 is: 2,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.70 : 6,639.31 = 1,963.28 : x
  2. Step 2: Convert to fraction form
    4,427.70/6,639.31 = 1,963.28/x
  3. Step 3: Cross multiply
    4,427.70x = 6,639.31 × 1,963.28
  4. Step 4: Simplify right side
    4,427.70x = 13,034,824.54
  5. Step 5: Solve for x
    x = 13,034,824.54/4,427.70
  6. Step 6: Final answer
    x = 2,943.93

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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.