Home / 5,272.20-7,275.56-2,914.29

Finding the Fourth Proportional to 5,272.20, 7,275.56 and 2,914.29

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Solution

The fourth proportional to 5,272.20, 7,275.56 and 2,914.29 is: 4,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.20 : 7,275.56 = 2,914.29 : x
  2. Step 2: Convert to fraction form
    5,272.20/7,275.56 = 2,914.29/x
  3. Step 3: Cross multiply
    5,272.20x = 7,275.56 × 2,914.29
  4. Step 4: Simplify right side
    5,272.20x = 21,203,077.18
  5. Step 5: Solve for x
    x = 21,203,077.18/5,272.20
  6. Step 6: Final answer
    x = 4,021.68

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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.