Home / 3,826.59-5,280.78-2,125.04

Finding the Fourth Proportional to 3,826.59, 5,280.78 and 2,125.04

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Solution

The fourth proportional to 3,826.59, 5,280.78 and 2,125.04 is: 2,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.59 : 5,280.78 = 2,125.04 : x
  2. Step 2: Convert to fraction form
    3,826.59/5,280.78 = 2,125.04/x
  3. Step 3: Cross multiply
    3,826.59x = 5,280.78 × 2,125.04
  4. Step 4: Simplify right side
    3,826.59x = 11,221,842.33
  5. Step 5: Solve for x
    x = 11,221,842.33/3,826.59
  6. Step 6: Final answer
    x = 2,932.60

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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.