Home / 7,780.25-11,672.09-2,849.93

Finding the Fourth Proportional to 7,780.25, 11,672.09 and 2,849.93

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Solution

The fourth proportional to 7,780.25, 11,672.09 and 2,849.93 is: 4,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.25 : 11,672.09 = 2,849.93 : x
  2. Step 2: Convert to fraction form
    7,780.25/11,672.09 = 2,849.93/x
  3. Step 3: Cross multiply
    7,780.25x = 11,672.09 × 2,849.93
  4. Step 4: Simplify right side
    7,780.25x = 33,264,682.95
  5. Step 5: Solve for x
    x = 33,264,682.95/7,780.25
  6. Step 6: Final answer
    x = 4,275.53

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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.