Home / 5,272.80-7,276.42-2,914.90

Finding the Fourth Proportional to 5,272.80, 7,276.42 and 2,914.90

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Solution

The fourth proportional to 5,272.80, 7,276.42 and 2,914.90 is: 4,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.80 : 7,276.42 = 2,914.90 : x
  2. Step 2: Convert to fraction form
    5,272.80/7,276.42 = 2,914.90/x
  3. Step 3: Cross multiply
    5,272.80x = 7,276.42 × 2,914.90
  4. Step 4: Simplify right side
    5,272.80x = 21,210,036.66
  5. Step 5: Solve for x
    x = 21,210,036.66/5,272.80
  6. Step 6: Final answer
    x = 4,022.54

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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.