Home / 2,528.52-3,786.87-2,217.12

Finding the Fourth Proportional to 2,528.52, 3,786.87 and 2,217.12

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Solution

The fourth proportional to 2,528.52, 3,786.87 and 2,217.12 is: 3,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.52 : 3,786.87 = 2,217.12 : x
  2. Step 2: Convert to fraction form
    2,528.52/3,786.87 = 2,217.12/x
  3. Step 3: Cross multiply
    2,528.52x = 3,786.87 × 2,217.12
  4. Step 4: Simplify right side
    2,528.52x = 8,395,945.21
  5. Step 5: Solve for x
    x = 8,395,945.21/2,528.52
  6. Step 6: Final answer
    x = 3,320.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.