Home / 5,179.35-7,772.31-2,715.93

Finding the Fourth Proportional to 5,179.35, 7,772.31 and 2,715.93

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Solution

The fourth proportional to 5,179.35, 7,772.31 and 2,715.93 is: 4,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.35 : 7,772.31 = 2,715.93 : x
  2. Step 2: Convert to fraction form
    5,179.35/7,772.31 = 2,715.93/x
  3. Step 3: Cross multiply
    5,179.35x = 7,772.31 × 2,715.93
  4. Step 4: Simplify right side
    5,179.35x = 21,109,049.90
  5. Step 5: Solve for x
    x = 21,109,049.90/5,179.35
  6. Step 6: Final answer
    x = 4,075.62

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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.