Home / 7,221.04-10,831.92-2,290.80

Finding the Fourth Proportional to 7,221.04, 10,831.92 and 2,290.80

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Solution

The fourth proportional to 7,221.04, 10,831.92 and 2,290.80 is: 3,436.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.04 : 10,831.92 = 2,290.80 : x
  2. Step 2: Convert to fraction form
    7,221.04/10,831.92 = 2,290.80/x
  3. Step 3: Cross multiply
    7,221.04x = 10,831.92 × 2,290.80
  4. Step 4: Simplify right side
    7,221.04x = 24,813,762.34
  5. Step 5: Solve for x
    x = 24,813,762.34/7,221.04
  6. Step 6: Final answer
    x = 3,436.31

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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.