Home / 7,136.29-10,709.69-3,388.08

Finding the Fourth Proportional to 7,136.29, 10,709.69 and 3,388.08

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Solution

The fourth proportional to 7,136.29, 10,709.69 and 3,388.08 is: 5,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.29 : 10,709.69 = 3,388.08 : x
  2. Step 2: Convert to fraction form
    7,136.29/10,709.69 = 3,388.08/x
  3. Step 3: Cross multiply
    7,136.29x = 10,709.69 × 3,388.08
  4. Step 4: Simplify right side
    7,136.29x = 36,285,269.55
  5. Step 5: Solve for x
    x = 36,285,269.55/7,136.29
  6. Step 6: Final answer
    x = 5,084.62

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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.