Home / 7,569.68-11,355.92-3,409.80

Finding the Fourth Proportional to 7,569.68, 11,355.92 and 3,409.80

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Solution

The fourth proportional to 7,569.68, 11,355.92 and 3,409.80 is: 5,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,569.68 : 11,355.92 = 3,409.80 : x
  2. Step 2: Convert to fraction form
    7,569.68/11,355.92 = 3,409.80/x
  3. Step 3: Cross multiply
    7,569.68x = 11,355.92 × 3,409.80
  4. Step 4: Simplify right side
    7,569.68x = 38,721,416.02
  5. Step 5: Solve for x
    x = 38,721,416.02/7,569.68
  6. Step 6: Final answer
    x = 5,115.33

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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.