Home / 3,439.78-4,745.39-2,641.69

Finding the Fourth Proportional to 3,439.78, 4,745.39 and 2,641.69

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Solution

The fourth proportional to 3,439.78, 4,745.39 and 2,641.69 is: 3,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.78 : 4,745.39 = 2,641.69 : x
  2. Step 2: Convert to fraction form
    3,439.78/4,745.39 = 2,641.69/x
  3. Step 3: Cross multiply
    3,439.78x = 4,745.39 × 2,641.69
  4. Step 4: Simplify right side
    3,439.78x = 12,535,842.03
  5. Step 5: Solve for x
    x = 12,535,842.03/3,439.78
  6. Step 6: Final answer
    x = 3,644.38

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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.