Home / 7,221.33-10,831.01-2,291.47

Finding the Fourth Proportional to 7,221.33, 10,831.01 and 2,291.47

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Solution

The fourth proportional to 7,221.33, 10,831.01 and 2,291.47 is: 3,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.33 : 10,831.01 = 2,291.47 : x
  2. Step 2: Convert to fraction form
    7,221.33/10,831.01 = 2,291.47/x
  3. Step 3: Cross multiply
    7,221.33x = 10,831.01 × 2,291.47
  4. Step 4: Simplify right side
    7,221.33x = 24,818,895.95
  5. Step 5: Solve for x
    x = 24,818,895.95/7,221.33
  6. Step 6: Final answer
    x = 3,436.89

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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.