Home / 5,272.27-7,275.71-2,914.40

Finding the Fourth Proportional to 5,272.27, 7,275.71 and 2,914.40

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Solution

The fourth proportional to 5,272.27, 7,275.71 and 2,914.40 is: 4,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.27 : 7,275.71 = 2,914.40 : x
  2. Step 2: Convert to fraction form
    5,272.27/7,275.71 = 2,914.40/x
  3. Step 3: Cross multiply
    5,272.27x = 7,275.71 × 2,914.40
  4. Step 4: Simplify right side
    5,272.27x = 21,204,354.70
  5. Step 5: Solve for x
    x = 21,204,354.70/5,272.27
  6. Step 6: Final answer
    x = 4,021.87

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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.