Home / 1,293.18-1,771.64-1,243.86

Finding the Fourth Proportional to 1,293.18, 1,771.64 and 1,243.86

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Solution

The fourth proportional to 1,293.18, 1,771.64 and 1,243.86 is: 1,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.18 : 1,771.64 = 1,243.86 : x
  2. Step 2: Convert to fraction form
    1,293.18/1,771.64 = 1,243.86/x
  3. Step 3: Cross multiply
    1,293.18x = 1,771.64 × 1,243.86
  4. Step 4: Simplify right side
    1,293.18x = 2,203,665.91
  5. Step 5: Solve for x
    x = 2,203,665.91/1,293.18
  6. Step 6: Final answer
    x = 1,704.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.