Home / 8,945.52-13,418.28-2,790

Finding the Fourth Proportional to 8,945.52, 13,418.28 and 2,790

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Solution

The fourth proportional to 8,945.52, 13,418.28 and 2,790 is: 4,185

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.52 : 13,418.28 = 2,790 : x
  2. Step 2: Convert to fraction form
    8,945.52/13,418.28 = 2,790/x
  3. Step 3: Cross multiply
    8,945.52x = 13,418.28 × 2,790
  4. Step 4: Simplify right side
    8,945.52x = 37,437,001.20
  5. Step 5: Solve for x
    x = 37,437,001.20/8,945.52
  6. Step 6: Final answer
    x = 4,185

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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.