Home / 2,652.06-3,979.99-2,138.28

Finding the Fourth Proportional to 2,652.06, 3,979.99 and 2,138.28

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Solution

The fourth proportional to 2,652.06, 3,979.99 and 2,138.28 is: 3,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.06 : 3,979.99 = 2,138.28 : x
  2. Step 2: Convert to fraction form
    2,652.06/3,979.99 = 2,138.28/x
  3. Step 3: Cross multiply
    2,652.06x = 3,979.99 × 2,138.28
  4. Step 4: Simplify right side
    2,652.06x = 8,510,320.77
  5. Step 5: Solve for x
    x = 8,510,320.77/2,652.06
  6. Step 6: Final answer
    x = 3,208.94

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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.