Home / 4,947.78-6,828.90-3,269.28

Finding the Fourth Proportional to 4,947.78, 6,828.90 and 3,269.28

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Solution

The fourth proportional to 4,947.78, 6,828.90 and 3,269.28 is: 4,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.78 : 6,828.90 = 3,269.28 : x
  2. Step 2: Convert to fraction form
    4,947.78/6,828.90 = 3,269.28/x
  3. Step 3: Cross multiply
    4,947.78x = 6,828.90 × 3,269.28
  4. Step 4: Simplify right side
    4,947.78x = 22,325,586.19
  5. Step 5: Solve for x
    x = 22,325,586.19/4,947.78
  6. Step 6: Final answer
    x = 4,512.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.