Home / 3,618.27-5,429.57-2,389.23

Finding the Fourth Proportional to 3,618.27, 5,429.57 and 2,389.23

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Solution

The fourth proportional to 3,618.27, 5,429.57 and 2,389.23 is: 3,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.27 : 5,429.57 = 2,389.23 : x
  2. Step 2: Convert to fraction form
    3,618.27/5,429.57 = 2,389.23/x
  3. Step 3: Cross multiply
    3,618.27x = 5,429.57 × 2,389.23
  4. Step 4: Simplify right side
    3,618.27x = 12,972,479.58
  5. Step 5: Solve for x
    x = 12,972,479.58/3,618.27
  6. Step 6: Final answer
    x = 3,585.27

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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.