Home / 5,272.20-7,275.78-2,914.44

Finding the Fourth Proportional to 5,272.20, 7,275.78 and 2,914.44

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Solution

The fourth proportional to 5,272.20, 7,275.78 and 2,914.44 is: 4,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.20 : 7,275.78 = 2,914.44 : x
  2. Step 2: Convert to fraction form
    5,272.20/7,275.78 = 2,914.44/x
  3. Step 3: Cross multiply
    5,272.20x = 7,275.78 × 2,914.44
  4. Step 4: Simplify right side
    5,272.20x = 21,204,824.26
  5. Step 5: Solve for x
    x = 21,204,824.26/5,272.20
  6. Step 6: Final answer
    x = 4,022.01

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1.5x scale

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.