Home / 7,272.36-10,909.44-3,112.92

Finding the Fourth Proportional to 7,272.36, 10,909.44 and 3,112.92

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Solution

The fourth proportional to 7,272.36, 10,909.44 and 3,112.92 is: 4,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.36 : 10,909.44 = 3,112.92 : x
  2. Step 2: Convert to fraction form
    7,272.36/10,909.44 = 3,112.92/x
  3. Step 3: Cross multiply
    7,272.36x = 10,909.44 × 3,112.92
  4. Step 4: Simplify right side
    7,272.36x = 33,960,213.96
  5. Step 5: Solve for x
    x = 33,960,213.96/7,272.36
  6. Step 6: Final answer
    x = 4,669.77

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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.