Home / 7,221.28-10,831.08-2,027.60

Finding the Fourth Proportional to 7,221.28, 10,831.08 and 2,027.60

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Solution

The fourth proportional to 7,221.28, 10,831.08 and 2,027.60 is: 3,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.28 : 10,831.08 = 2,027.60 : x
  2. Step 2: Convert to fraction form
    7,221.28/10,831.08 = 2,027.60/x
  3. Step 3: Cross multiply
    7,221.28x = 10,831.08 × 2,027.60
  4. Step 4: Simplify right side
    7,221.28x = 21,961,097.81
  5. Step 5: Solve for x
    x = 21,961,097.81/7,221.28
  6. Step 6: Final answer
    x = 3,041.16

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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.