Home / 3,103.04-4,282.21-1,686.74

Finding the Fourth Proportional to 3,103.04, 4,282.21 and 1,686.74

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Solution

The fourth proportional to 3,103.04, 4,282.21 and 1,686.74 is: 2,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.04 : 4,282.21 = 1,686.74 : x
  2. Step 2: Convert to fraction form
    3,103.04/4,282.21 = 1,686.74/x
  3. Step 3: Cross multiply
    3,103.04x = 4,282.21 × 1,686.74
  4. Step 4: Simplify right side
    3,103.04x = 7,222,974.90
  5. Step 5: Solve for x
    x = 7,222,974.90/3,103.04
  6. Step 6: Final answer
    x = 2,327.71

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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.