Home / 2,282.80-3,150-1,288.02

Finding the Fourth Proportional to 2,282.80, 3,150 and 1,288.02

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Solution

The fourth proportional to 2,282.80, 3,150 and 1,288.02 is: 1,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.80 : 3,150 = 1,288.02 : x
  2. Step 2: Convert to fraction form
    2,282.80/3,150 = 1,288.02/x
  3. Step 3: Cross multiply
    2,282.80x = 3,150 × 1,288.02
  4. Step 4: Simplify right side
    2,282.80x = 4,057,263
  5. Step 5: Solve for x
    x = 4,057,263/2,282.80
  6. Step 6: Final answer
    x = 1,777.32

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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.