Home / 7,272.52-10,908.78-2,078.39

Finding the Fourth Proportional to 7,272.52, 10,908.78 and 2,078.39

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Solution

The fourth proportional to 7,272.52, 10,908.78 and 2,078.39 is: 3,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.52 : 10,908.78 = 2,078.39 : x
  2. Step 2: Convert to fraction form
    7,272.52/10,908.78 = 2,078.39/x
  3. Step 3: Cross multiply
    7,272.52x = 10,908.78 × 2,078.39
  4. Step 4: Simplify right side
    7,272.52x = 22,672,699.26
  5. Step 5: Solve for x
    x = 22,672,699.26/7,272.52
  6. Step 6: Final answer
    x = 3,117.59

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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.