Home / 5,717.10-7,889.76-3,199.31

Finding the Fourth Proportional to 5,717.10, 7,889.76 and 3,199.31

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Solution

The fourth proportional to 5,717.10, 7,889.76 and 3,199.31 is: 4,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.10 : 7,889.76 = 3,199.31 : x
  2. Step 2: Convert to fraction form
    5,717.10/7,889.76 = 3,199.31/x
  3. Step 3: Cross multiply
    5,717.10x = 7,889.76 × 3,199.31
  4. Step 4: Simplify right side
    5,717.10x = 25,241,748.62
  5. Step 5: Solve for x
    x = 25,241,748.62/5,717.10
  6. Step 6: Final answer
    x = 4,415.13

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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.