Home / 2,134.40-2,945.42-1,202.90

Finding the Fourth Proportional to 2,134.40, 2,945.42 and 1,202.90

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Solution

The fourth proportional to 2,134.40, 2,945.42 and 1,202.90 is: 1,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.40 : 2,945.42 = 1,202.90 : x
  2. Step 2: Convert to fraction form
    2,134.40/2,945.42 = 1,202.90/x
  3. Step 3: Cross multiply
    2,134.40x = 2,945.42 × 1,202.90
  4. Step 4: Simplify right side
    2,134.40x = 3,543,045.72
  5. Step 5: Solve for x
    x = 3,543,045.72/2,134.40
  6. Step 6: Final answer
    x = 1,659.97

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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.