Home / 5,042-7,564.07-2,118.62

Finding the Fourth Proportional to 5,042, 7,564.07 and 2,118.62

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Solution

The fourth proportional to 5,042, 7,564.07 and 2,118.62 is: 3,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042 : 7,564.07 = 2,118.62 : x
  2. Step 2: Convert to fraction form
    5,042/7,564.07 = 2,118.62/x
  3. Step 3: Cross multiply
    5,042x = 7,564.07 × 2,118.62
  4. Step 4: Simplify right side
    5,042x = 16,025,379.39
  5. Step 5: Solve for x
    x = 16,025,379.39/5,042
  6. Step 6: Final answer
    x = 3,178.38

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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.