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Finding the Fourth Proportional to 4,288.78, 5,919.16 and 2,717.02

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Solution

The fourth proportional to 4,288.78, 5,919.16 and 2,717.02 is: 3,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.78 : 5,919.16 = 2,717.02 : x
  2. Step 2: Convert to fraction form
    4,288.78/5,919.16 = 2,717.02/x
  3. Step 3: Cross multiply
    4,288.78x = 5,919.16 × 2,717.02
  4. Step 4: Simplify right side
    4,288.78x = 16,082,476.10
  5. Step 5: Solve for x
    x = 16,082,476.10/4,288.78
  6. Step 6: Final answer
    x = 3,749.90

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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.