Home / 3,181.01-4,389.84-1,921.89

Finding the Fourth Proportional to 3,181.01, 4,389.84 and 1,921.89

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Solution

The fourth proportional to 3,181.01, 4,389.84 and 1,921.89 is: 2,652.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.01 : 4,389.84 = 1,921.89 : x
  2. Step 2: Convert to fraction form
    3,181.01/4,389.84 = 1,921.89/x
  3. Step 3: Cross multiply
    3,181.01x = 4,389.84 × 1,921.89
  4. Step 4: Simplify right side
    3,181.01x = 8,436,805.38
  5. Step 5: Solve for x
    x = 8,436,805.38/3,181.01
  6. Step 6: Final answer
    x = 2,652.24

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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.