Home / 7,428.99-11,143.07-2,092.52

Finding the Fourth Proportional to 7,428.99, 11,143.07 and 2,092.52

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Solution

The fourth proportional to 7,428.99, 11,143.07 and 2,092.52 is: 3,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.99 : 11,143.07 = 2,092.52 : x
  2. Step 2: Convert to fraction form
    7,428.99/11,143.07 = 2,092.52/x
  3. Step 3: Cross multiply
    7,428.99x = 11,143.07 × 2,092.52
  4. Step 4: Simplify right side
    7,428.99x = 23,317,030.66
  5. Step 5: Solve for x
    x = 23,317,030.66/7,428.99
  6. Step 6: Final answer
    x = 3,138.65

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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.