Home / 3,961.78-5,471.58-2,641.10

Finding the Fourth Proportional to 3,961.78, 5,471.58 and 2,641.10

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Solution

The fourth proportional to 3,961.78, 5,471.58 and 2,641.10 is: 3,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.78 : 5,471.58 = 2,641.10 : x
  2. Step 2: Convert to fraction form
    3,961.78/5,471.58 = 2,641.10/x
  3. Step 3: Cross multiply
    3,961.78x = 5,471.58 × 2,641.10
  4. Step 4: Simplify right side
    3,961.78x = 14,450,989.94
  5. Step 5: Solve for x
    x = 14,450,989.94/3,961.78
  6. Step 6: Final answer
    x = 3,647.60

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1.5x scale

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.