Home / 5,272.78-7,276.08-2,914.60

Finding the Fourth Proportional to 5,272.78, 7,276.08 and 2,914.60

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Solution

The fourth proportional to 5,272.78, 7,276.08 and 2,914.60 is: 4,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.78 : 7,276.08 = 2,914.60 : x
  2. Step 2: Convert to fraction form
    5,272.78/7,276.08 = 2,914.60/x
  3. Step 3: Cross multiply
    5,272.78x = 7,276.08 × 2,914.60
  4. Step 4: Simplify right side
    5,272.78x = 21,206,862.77
  5. Step 5: Solve for x
    x = 21,206,862.77/5,272.78
  6. Step 6: Final answer
    x = 4,021.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.