Home / 3,826.38-5,280.96-2,148.48

Finding the Fourth Proportional to 3,826.38, 5,280.96 and 2,148.48

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Solution

The fourth proportional to 3,826.38, 5,280.96 and 2,148.48 is: 2,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.38 : 5,280.96 = 2,148.48 : x
  2. Step 2: Convert to fraction form
    3,826.38/5,280.96 = 2,148.48/x
  3. Step 3: Cross multiply
    3,826.38x = 5,280.96 × 2,148.48
  4. Step 4: Simplify right side
    3,826.38x = 11,346,036.94
  5. Step 5: Solve for x
    x = 11,346,036.94/3,826.38
  6. Step 6: Final answer
    x = 2,965.21

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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.