Home / 2,516.25-3,771.14-1,861.77

Finding the Fourth Proportional to 2,516.25, 3,771.14 and 1,861.77

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Solution

The fourth proportional to 2,516.25, 3,771.14 and 1,861.77 is: 2,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.25 : 3,771.14 = 1,861.77 : x
  2. Step 2: Convert to fraction form
    2,516.25/3,771.14 = 1,861.77/x
  3. Step 3: Cross multiply
    2,516.25x = 3,771.14 × 1,861.77
  4. Step 4: Simplify right side
    2,516.25x = 7,020,986.01
  5. Step 5: Solve for x
    x = 7,020,986.01/2,516.25
  6. Step 6: Final answer
    x = 2,790.26

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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.