Home / 3,826.52-5,280.87-2,148.09

Finding the Fourth Proportional to 3,826.52, 5,280.87 and 2,148.09

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Solution

The fourth proportional to 3,826.52, 5,280.87 and 2,148.09 is: 2,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.52 : 5,280.87 = 2,148.09 : x
  2. Step 2: Convert to fraction form
    3,826.52/5,280.87 = 2,148.09/x
  3. Step 3: Cross multiply
    3,826.52x = 5,280.87 × 2,148.09
  4. Step 4: Simplify right side
    3,826.52x = 11,343,784.04
  5. Step 5: Solve for x
    x = 11,343,784.04/3,826.52
  6. Step 6: Final answer
    x = 2,964.52

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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.