Home / 7,272.16-10,909.62-3,323.68

Finding the Fourth Proportional to 7,272.16, 10,909.62 and 3,323.68

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Solution

The fourth proportional to 7,272.16, 10,909.62 and 3,323.68 is: 4,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.16 : 10,909.62 = 3,323.68 : x
  2. Step 2: Convert to fraction form
    7,272.16/10,909.62 = 3,323.68/x
  3. Step 3: Cross multiply
    7,272.16x = 10,909.62 × 3,323.68
  4. Step 4: Simplify right side
    7,272.16x = 36,260,085.80
  5. Step 5: Solve for x
    x = 36,260,085.80/7,272.16
  6. Step 6: Final answer
    x = 4,986.15

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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.