Home / 1,660.51-2,291.73-961.88

Finding the Fourth Proportional to 1,660.51, 2,291.73 and 961.88

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Solution

The fourth proportional to 1,660.51, 2,291.73 and 961.88 is: 1,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.51 : 2,291.73 = 961.88 : x
  2. Step 2: Convert to fraction form
    1,660.51/2,291.73 = 961.88/x
  3. Step 3: Cross multiply
    1,660.51x = 2,291.73 × 961.88
  4. Step 4: Simplify right side
    1,660.51x = 2,204,369.25
  5. Step 5: Solve for x
    x = 2,204,369.25/1,660.51
  6. Step 6: Final answer
    x = 1,327.53

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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.