Home / 4,688.87-7,029.79-2,839.53

Finding the Fourth Proportional to 4,688.87, 7,029.79 and 2,839.53

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Solution

The fourth proportional to 4,688.87, 7,029.79 and 2,839.53 is: 4,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.87 : 7,029.79 = 2,839.53 : x
  2. Step 2: Convert to fraction form
    4,688.87/7,029.79 = 2,839.53/x
  3. Step 3: Cross multiply
    4,688.87x = 7,029.79 × 2,839.53
  4. Step 4: Simplify right side
    4,688.87x = 19,961,299.60
  5. Step 5: Solve for x
    x = 19,961,299.60/4,688.87
  6. Step 6: Final answer
    x = 4,257.17

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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.