Home / 1,469.19-2,202.57-739.59

Finding the Fourth Proportional to 1,469.19, 2,202.57 and 739.59

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Solution

The fourth proportional to 1,469.19, 2,202.57 and 739.59 is: 1,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.19 : 2,202.57 = 739.59 : x
  2. Step 2: Convert to fraction form
    1,469.19/2,202.57 = 739.59/x
  3. Step 3: Cross multiply
    1,469.19x = 2,202.57 × 739.59
  4. Step 4: Simplify right side
    1,469.19x = 1,628,998.75
  5. Step 5: Solve for x
    x = 1,628,998.75/1,469.19
  6. Step 6: Final answer
    x = 1,108.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.