Home / 7,219.80-10,831.05-2,288.11

Finding the Fourth Proportional to 7,219.80, 10,831.05 and 2,288.11

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Solution

The fourth proportional to 7,219.80, 10,831.05 and 2,288.11 is: 3,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.80 : 10,831.05 = 2,288.11 : x
  2. Step 2: Convert to fraction form
    7,219.80/10,831.05 = 2,288.11/x
  3. Step 3: Cross multiply
    7,219.80x = 10,831.05 × 2,288.11
  4. Step 4: Simplify right side
    7,219.80x = 24,782,652.31
  5. Step 5: Solve for x
    x = 24,782,652.31/7,219.80
  6. Step 6: Final answer
    x = 3,432.60

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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.