Home / 1,656.09-2,480.32-961.03

Finding the Fourth Proportional to 1,656.09, 2,480.32 and 961.03

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Solution

The fourth proportional to 1,656.09, 2,480.32 and 961.03 is: 1,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.09 : 2,480.32 = 961.03 : x
  2. Step 2: Convert to fraction form
    1,656.09/2,480.32 = 961.03/x
  3. Step 3: Cross multiply
    1,656.09x = 2,480.32 × 961.03
  4. Step 4: Simplify right side
    1,656.09x = 2,383,661.93
  5. Step 5: Solve for x
    x = 2,383,661.93/1,656.09
  6. Step 6: Final answer
    x = 1,439.33

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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.