Home / 2,773.30-4,159.58-1,129.86

Finding the Fourth Proportional to 2,773.30, 4,159.58 and 1,129.86

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Solution

The fourth proportional to 2,773.30, 4,159.58 and 1,129.86 is: 1,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.30 : 4,159.58 = 1,129.86 : x
  2. Step 2: Convert to fraction form
    2,773.30/4,159.58 = 1,129.86/x
  3. Step 3: Cross multiply
    2,773.30x = 4,159.58 × 1,129.86
  4. Step 4: Simplify right side
    2,773.30x = 4,699,743.06
  5. Step 5: Solve for x
    x = 4,699,743.06/2,773.30
  6. Step 6: Final answer
    x = 1,694.64

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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.