Home / 7,421.67-11,128.49-3,042.27

Finding the Fourth Proportional to 7,421.67, 11,128.49 and 3,042.27

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Solution

The fourth proportional to 7,421.67, 11,128.49 and 3,042.27 is: 4,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.67 : 11,128.49 = 3,042.27 : x
  2. Step 2: Convert to fraction form
    7,421.67/11,128.49 = 3,042.27/x
  3. Step 3: Cross multiply
    7,421.67x = 11,128.49 × 3,042.27
  4. Step 4: Simplify right side
    7,421.67x = 33,855,871.27
  5. Step 5: Solve for x
    x = 33,855,871.27/7,421.67
  6. Step 6: Final answer
    x = 4,561.76

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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.