Home / 2,585.08-3,871.38-1,805.86

Finding the Fourth Proportional to 2,585.08, 3,871.38 and 1,805.86

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Solution

The fourth proportional to 2,585.08, 3,871.38 and 1,805.86 is: 2,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.08 : 3,871.38 = 1,805.86 : x
  2. Step 2: Convert to fraction form
    2,585.08/3,871.38 = 1,805.86/x
  3. Step 3: Cross multiply
    2,585.08x = 3,871.38 × 1,805.86
  4. Step 4: Simplify right side
    2,585.08x = 6,991,170.29
  5. Step 5: Solve for x
    x = 6,991,170.29/2,585.08
  6. Step 6: Final answer
    x = 2,704.43

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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.