Home / 3,418.28-5,129.06-1,686.52

Finding the Fourth Proportional to 3,418.28, 5,129.06 and 1,686.52

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Solution

The fourth proportional to 3,418.28, 5,129.06 and 1,686.52 is: 2,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.28 : 5,129.06 = 1,686.52 : x
  2. Step 2: Convert to fraction form
    3,418.28/5,129.06 = 1,686.52/x
  3. Step 3: Cross multiply
    3,418.28x = 5,129.06 × 1,686.52
  4. Step 4: Simplify right side
    3,418.28x = 8,650,262.27
  5. Step 5: Solve for x
    x = 8,650,262.27/3,418.28
  6. Step 6: Final answer
    x = 2,530.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.