Home / 2,518.22-3,779.64-1,286.50

Finding the Fourth Proportional to 2,518.22, 3,779.64 and 1,286.50

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Solution

The fourth proportional to 2,518.22, 3,779.64 and 1,286.50 is: 1,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.22 : 3,779.64 = 1,286.50 : x
  2. Step 2: Convert to fraction form
    2,518.22/3,779.64 = 1,286.50/x
  3. Step 3: Cross multiply
    2,518.22x = 3,779.64 × 1,286.50
  4. Step 4: Simplify right side
    2,518.22x = 4,862,506.86
  5. Step 5: Solve for x
    x = 4,862,506.86/2,518.22
  6. Step 6: Final answer
    x = 1,930.93

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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.