Home / 4,917.84-7,378.82-2,947.28

Finding the Fourth Proportional to 4,917.84, 7,378.82 and 2,947.28

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Solution

The fourth proportional to 4,917.84, 7,378.82 and 2,947.28 is: 4,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.84 : 7,378.82 = 2,947.28 : x
  2. Step 2: Convert to fraction form
    4,917.84/7,378.82 = 2,947.28/x
  3. Step 3: Cross multiply
    4,917.84x = 7,378.82 × 2,947.28
  4. Step 4: Simplify right side
    4,917.84x = 21,747,396.98
  5. Step 5: Solve for x
    x = 21,747,396.98/4,917.84
  6. Step 6: Final answer
    x = 4,422.14

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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.