Home / 3,826.60-5,280.96-2,148.13

Finding the Fourth Proportional to 3,826.60, 5,280.96 and 2,148.13

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Solution

The fourth proportional to 3,826.60, 5,280.96 and 2,148.13 is: 2,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.60 : 5,280.96 = 2,148.13 : x
  2. Step 2: Convert to fraction form
    3,826.60/5,280.96 = 2,148.13/x
  3. Step 3: Cross multiply
    3,826.60x = 5,280.96 × 2,148.13
  4. Step 4: Simplify right side
    3,826.60x = 11,344,188.60
  5. Step 5: Solve for x
    x = 11,344,188.60/3,826.60
  6. Step 6: Final answer
    x = 2,964.56

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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.