Home / 3,826.49-5,280.77-2,147.81

Finding the Fourth Proportional to 3,826.49, 5,280.77 and 2,147.81

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Solution

The fourth proportional to 3,826.49, 5,280.77 and 2,147.81 is: 2,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.49 : 5,280.77 = 2,147.81 : x
  2. Step 2: Convert to fraction form
    3,826.49/5,280.77 = 2,147.81/x
  3. Step 3: Cross multiply
    3,826.49x = 5,280.77 × 2,147.81
  4. Step 4: Simplify right side
    3,826.49x = 11,342,093.08
  5. Step 5: Solve for x
    x = 11,342,093.08/3,826.49
  6. Step 6: Final answer
    x = 2,964.10

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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.