Home / 2,133.78-2,944.80-1,202.28

Finding the Fourth Proportional to 2,133.78, 2,944.80 and 1,202.28

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Solution

The fourth proportional to 2,133.78, 2,944.80 and 1,202.28 is: 1,659.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.78 : 2,944.80 = 1,202.28 : x
  2. Step 2: Convert to fraction form
    2,133.78/2,944.80 = 1,202.28/x
  3. Step 3: Cross multiply
    2,133.78x = 2,944.80 × 1,202.28
  4. Step 4: Simplify right side
    2,133.78x = 3,540,474.14
  5. Step 5: Solve for x
    x = 3,540,474.14/2,133.78
  6. Step 6: Final answer
    x = 1,659.25

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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.