Home / 3,181.11-4,389.82-1,854.87

Finding the Fourth Proportional to 3,181.11, 4,389.82 and 1,854.87

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Solution

The fourth proportional to 3,181.11, 4,389.82 and 1,854.87 is: 2,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.11 : 4,389.82 = 1,854.87 : x
  2. Step 2: Convert to fraction form
    3,181.11/4,389.82 = 1,854.87/x
  3. Step 3: Cross multiply
    3,181.11x = 4,389.82 × 1,854.87
  4. Step 4: Simplify right side
    3,181.11x = 8,142,545.42
  5. Step 5: Solve for x
    x = 8,142,545.42/3,181.11
  6. Step 6: Final answer
    x = 2,559.66

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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.