Home / 1,863.08-2,790.21-1,618.29

Finding the Fourth Proportional to 1,863.08, 2,790.21 and 1,618.29

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Solution

The fourth proportional to 1,863.08, 2,790.21 and 1,618.29 is: 2,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.08 : 2,790.21 = 1,618.29 : x
  2. Step 2: Convert to fraction form
    1,863.08/2,790.21 = 1,618.29/x
  3. Step 3: Cross multiply
    1,863.08x = 2,790.21 × 1,618.29
  4. Step 4: Simplify right side
    1,863.08x = 4,515,368.94
  5. Step 5: Solve for x
    x = 4,515,368.94/1,863.08
  6. Step 6: Final answer
    x = 2,423.61

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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.