Home / 7,887.25-11,831.28-3,270.25

Finding the Fourth Proportional to 7,887.25, 11,831.28 and 3,270.25

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Solution

The fourth proportional to 7,887.25, 11,831.28 and 3,270.25 is: 4,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.25 : 11,831.28 = 3,270.25 : x
  2. Step 2: Convert to fraction form
    7,887.25/11,831.28 = 3,270.25/x
  3. Step 3: Cross multiply
    7,887.25x = 11,831.28 × 3,270.25
  4. Step 4: Simplify right side
    7,887.25x = 38,691,243.42
  5. Step 5: Solve for x
    x = 38,691,243.42/7,887.25
  6. Step 6: Final answer
    x = 4,905.54

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1.5x scale

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.