Home / 7,217.38-10,806.09-3,699.80

Finding the Fourth Proportional to 7,217.38, 10,806.09 and 3,699.80

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Solution

The fourth proportional to 7,217.38, 10,806.09 and 3,699.80 is: 5,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.38 : 10,806.09 = 3,699.80 : x
  2. Step 2: Convert to fraction form
    7,217.38/10,806.09 = 3,699.80/x
  3. Step 3: Cross multiply
    7,217.38x = 10,806.09 × 3,699.80
  4. Step 4: Simplify right side
    7,217.38x = 39,980,371.78
  5. Step 5: Solve for x
    x = 39,980,371.78/7,217.38
  6. Step 6: Final answer
    x = 5,539.46

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1.5x scale

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.