Home / 3,826.29-5,280.53-2,147.80

Finding the Fourth Proportional to 3,826.29, 5,280.53 and 2,147.80

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Solution

The fourth proportional to 3,826.29, 5,280.53 and 2,147.80 is: 2,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.29 : 5,280.53 = 2,147.80 : x
  2. Step 2: Convert to fraction form
    3,826.29/5,280.53 = 2,147.80/x
  3. Step 3: Cross multiply
    3,826.29x = 5,280.53 × 2,147.80
  4. Step 4: Simplify right side
    3,826.29x = 11,341,522.33
  5. Step 5: Solve for x
    x = 11,341,522.33/3,826.29
  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.