Home / 4,687.84-7,028.28-2,838.54

Finding the Fourth Proportional to 4,687.84, 7,028.28 and 2,838.54

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Solution

The fourth proportional to 4,687.84, 7,028.28 and 2,838.54 is: 4,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.84 : 7,028.28 = 2,838.54 : x
  2. Step 2: Convert to fraction form
    4,687.84/7,028.28 = 2,838.54/x
  3. Step 3: Cross multiply
    4,687.84x = 7,028.28 × 2,838.54
  4. Step 4: Simplify right side
    4,687.84x = 19,950,053.91
  5. Step 5: Solve for x
    x = 19,950,053.91/4,687.84
  6. Step 6: Final answer
    x = 4,255.70

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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.