Home / 2,256.15-3,379.27-1,861.71

Finding the Fourth Proportional to 2,256.15, 3,379.27 and 1,861.71

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Solution

The fourth proportional to 2,256.15, 3,379.27 and 1,861.71 is: 2,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.15 : 3,379.27 = 1,861.71 : x
  2. Step 2: Convert to fraction form
    2,256.15/3,379.27 = 1,861.71/x
  3. Step 3: Cross multiply
    2,256.15x = 3,379.27 × 1,861.71
  4. Step 4: Simplify right side
    2,256.15x = 6,291,220.75
  5. Step 5: Solve for x
    x = 6,291,220.75/2,256.15
  6. Step 6: Final answer
    x = 2,788.48

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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.