Home / 3,418.38-5,124.33-1,686.06

Finding the Fourth Proportional to 3,418.38, 5,124.33 and 1,686.06

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Solution

The fourth proportional to 3,418.38, 5,124.33 and 1,686.06 is: 2,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.38 : 5,124.33 = 1,686.06 : x
  2. Step 2: Convert to fraction form
    3,418.38/5,124.33 = 1,686.06/x
  3. Step 3: Cross multiply
    3,418.38x = 5,124.33 × 1,686.06
  4. Step 4: Simplify right side
    3,418.38x = 8,639,927.84
  5. Step 5: Solve for x
    x = 8,639,927.84/3,418.38
  6. Step 6: Final answer
    x = 2,527.49

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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.