Home / 2,282.68-3,150.09-1,288.28

Finding the Fourth Proportional to 2,282.68, 3,150.09 and 1,288.28

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Solution

The fourth proportional to 2,282.68, 3,150.09 and 1,288.28 is: 1,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.68 : 3,150.09 = 1,288.28 : x
  2. Step 2: Convert to fraction form
    2,282.68/3,150.09 = 1,288.28/x
  3. Step 3: Cross multiply
    2,282.68x = 3,150.09 × 1,288.28
  4. Step 4: Simplify right side
    2,282.68x = 4,058,197.95
  5. Step 5: Solve for x
    x = 4,058,197.95/2,282.68
  6. Step 6: Final answer
    x = 1,777.82

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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.