Home / 2,528.29-3,785.14-2,112.76

Finding the Fourth Proportional to 2,528.29, 3,785.14 and 2,112.76

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Solution

The fourth proportional to 2,528.29, 3,785.14 and 2,112.76 is: 3,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.29 : 3,785.14 = 2,112.76 : x
  2. Step 2: Convert to fraction form
    2,528.29/3,785.14 = 2,112.76/x
  3. Step 3: Cross multiply
    2,528.29x = 3,785.14 × 2,112.76
  4. Step 4: Simplify right side
    2,528.29x = 7,997,099.76
  5. Step 5: Solve for x
    x = 7,997,099.76/2,528.29
  6. Step 6: Final answer
    x = 3,163.05

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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.