Home / 2,091.27-2,885.99-1,207.11

Finding the Fourth Proportional to 2,091.27, 2,885.99 and 1,207.11

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Solution

The fourth proportional to 2,091.27, 2,885.99 and 1,207.11 is: 1,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.27 : 2,885.99 = 1,207.11 : x
  2. Step 2: Convert to fraction form
    2,091.27/2,885.99 = 1,207.11/x
  3. Step 3: Cross multiply
    2,091.27x = 2,885.99 × 1,207.11
  4. Step 4: Simplify right side
    2,091.27x = 3,483,707.39
  5. Step 5: Solve for x
    x = 3,483,707.39/2,091.27
  6. Step 6: Final answer
    x = 1,665.83

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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.