Home / 7,222.28-10,833.70-2,291.80

Finding the Fourth Proportional to 7,222.28, 10,833.70 and 2,291.80

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Solution

The fourth proportional to 7,222.28, 10,833.70 and 2,291.80 is: 3,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.28 : 10,833.70 = 2,291.80 : x
  2. Step 2: Convert to fraction form
    7,222.28/10,833.70 = 2,291.80/x
  3. Step 3: Cross multiply
    7,222.28x = 10,833.70 × 2,291.80
  4. Step 4: Simplify right side
    7,222.28x = 24,828,673.66
  5. Step 5: Solve for x
    x = 24,828,673.66/7,222.28
  6. Step 6: Final answer
    x = 3,437.79

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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.