Home / 7,425.36-11,139-2,231.76

Finding the Fourth Proportional to 7,425.36, 11,139 and 2,231.76

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Solution

The fourth proportional to 7,425.36, 11,139 and 2,231.76 is: 3,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.36 : 11,139 = 2,231.76 : x
  2. Step 2: Convert to fraction form
    7,425.36/11,139 = 2,231.76/x
  3. Step 3: Cross multiply
    7,425.36x = 11,139 × 2,231.76
  4. Step 4: Simplify right side
    7,425.36x = 24,859,574.64
  5. Step 5: Solve for x
    x = 24,859,574.64/7,425.36
  6. Step 6: Final answer
    x = 3,347.93

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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.