Home / 2,087.16-3,132.75-992.25

Finding the Fourth Proportional to 2,087.16, 3,132.75 and 992.25

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Solution

The fourth proportional to 2,087.16, 3,132.75 and 992.25 is: 1,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.16 : 3,132.75 = 992.25 : x
  2. Step 2: Convert to fraction form
    2,087.16/3,132.75 = 992.25/x
  3. Step 3: Cross multiply
    2,087.16x = 3,132.75 × 992.25
  4. Step 4: Simplify right side
    2,087.16x = 3,108,471.19
  5. Step 5: Solve for x
    x = 3,108,471.19/2,087.16
  6. Step 6: Final answer
    x = 1,489.33

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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.