Home / 2,127.71-3,189.77-1,016.50

Finding the Fourth Proportional to 2,127.71, 3,189.77 and 1,016.50

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Solution

The fourth proportional to 2,127.71, 3,189.77 and 1,016.50 is: 1,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.71 : 3,189.77 = 1,016.50 : x
  2. Step 2: Convert to fraction form
    2,127.71/3,189.77 = 1,016.50/x
  3. Step 3: Cross multiply
    2,127.71x = 3,189.77 × 1,016.50
  4. Step 4: Simplify right side
    2,127.71x = 3,242,402.94
  5. Step 5: Solve for x
    x = 3,242,402.94/2,127.71
  6. Step 6: Final answer
    x = 1,523.89

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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.