Home / 3,621.12-5,429.76-1,568

Finding the Fourth Proportional to 3,621.12, 5,429.76 and 1,568

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Solution

The fourth proportional to 3,621.12, 5,429.76 and 1,568 is: 2,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.12 : 5,429.76 = 1,568 : x
  2. Step 2: Convert to fraction form
    3,621.12/5,429.76 = 1,568/x
  3. Step 3: Cross multiply
    3,621.12x = 5,429.76 × 1,568
  4. Step 4: Simplify right side
    3,621.12x = 8,513,863.68
  5. Step 5: Solve for x
    x = 8,513,863.68/3,621.12
  6. Step 6: Final answer
    x = 2,351.17

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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.