Home / 7,428.48-11,142.49-3,042.64

Finding the Fourth Proportional to 7,428.48, 11,142.49 and 3,042.64

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Solution

The fourth proportional to 7,428.48, 11,142.49 and 3,042.64 is: 4,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.48 : 11,142.49 = 3,042.64 : x
  2. Step 2: Convert to fraction form
    7,428.48/11,142.49 = 3,042.64/x
  3. Step 3: Cross multiply
    7,428.48x = 11,142.49 × 3,042.64
  4. Step 4: Simplify right side
    7,428.48x = 33,902,550.31
  5. Step 5: Solve for x
    x = 33,902,550.31/7,428.48
  6. Step 6: Final answer
    x = 4,563.86

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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.