Home / 3,108.29-4,289.37-1,692

Finding the Fourth Proportional to 3,108.29, 4,289.37 and 1,692

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Solution

The fourth proportional to 3,108.29, 4,289.37 and 1,692 is: 2,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.29 : 4,289.37 = 1,692 : x
  2. Step 2: Convert to fraction form
    3,108.29/4,289.37 = 1,692/x
  3. Step 3: Cross multiply
    3,108.29x = 4,289.37 × 1,692
  4. Step 4: Simplify right side
    3,108.29x = 7,257,614.04
  5. Step 5: Solve for x
    x = 7,257,614.04/3,108.29
  6. Step 6: Final answer
    x = 2,334.93

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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.