Home / 5,272.80-7,276.28-2,914.88

Finding the Fourth Proportional to 5,272.80, 7,276.28 and 2,914.88

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Solution

The fourth proportional to 5,272.80, 7,276.28 and 2,914.88 is: 4,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.80 : 7,276.28 = 2,914.88 : x
  2. Step 2: Convert to fraction form
    5,272.80/7,276.28 = 2,914.88/x
  3. Step 3: Cross multiply
    5,272.80x = 7,276.28 × 2,914.88
  4. Step 4: Simplify right side
    5,272.80x = 21,209,483.05
  5. Step 5: Solve for x
    x = 21,209,483.05/5,272.80
  6. Step 6: Final answer
    x = 4,022.43

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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.