Home / 7,272.61-10,908.96-3,109.11

Finding the Fourth Proportional to 7,272.61, 10,908.96 and 3,109.11

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Solution

The fourth proportional to 7,272.61, 10,908.96 and 3,109.11 is: 4,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.61 : 10,908.96 = 3,109.11 : x
  2. Step 2: Convert to fraction form
    7,272.61/10,908.96 = 3,109.11/x
  3. Step 3: Cross multiply
    7,272.61x = 10,908.96 × 3,109.11
  4. Step 4: Simplify right side
    7,272.61x = 33,917,156.63
  5. Step 5: Solve for x
    x = 33,917,156.63/7,272.61
  6. Step 6: Final answer
    x = 4,663.68

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1.5x scale

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.