Home / 2,717.11-3,749.69-1,538.16

Finding the Fourth Proportional to 2,717.11, 3,749.69 and 1,538.16

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Solution

The fourth proportional to 2,717.11, 3,749.69 and 1,538.16 is: 2,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.11 : 3,749.69 = 1,538.16 : x
  2. Step 2: Convert to fraction form
    2,717.11/3,749.69 = 1,538.16/x
  3. Step 3: Cross multiply
    2,717.11x = 3,749.69 × 1,538.16
  4. Step 4: Simplify right side
    2,717.11x = 5,767,623.17
  5. Step 5: Solve for x
    x = 5,767,623.17/2,717.11
  6. Step 6: Final answer
    x = 2,122.71

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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.