Home / 5,272.42-7,276.35-2,914.78

Finding the Fourth Proportional to 5,272.42, 7,276.35 and 2,914.78

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Solution

The fourth proportional to 5,272.42, 7,276.35 and 2,914.78 is: 4,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.42 : 7,276.35 = 2,914.78 : x
  2. Step 2: Convert to fraction form
    5,272.42/7,276.35 = 2,914.78/x
  3. Step 3: Cross multiply
    5,272.42x = 7,276.35 × 2,914.78
  4. Step 4: Simplify right side
    5,272.42x = 21,208,959.45
  5. Step 5: Solve for x
    x = 21,208,959.45/5,272.42
  6. Step 6: Final answer
    x = 4,022.62

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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.