Home / 2,279.77-3,146.08-1,231.83

Finding the Fourth Proportional to 2,279.77, 3,146.08 and 1,231.83

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Solution

The fourth proportional to 2,279.77, 3,146.08 and 1,231.83 is: 1,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.77 : 3,146.08 = 1,231.83 : x
  2. Step 2: Convert to fraction form
    2,279.77/3,146.08 = 1,231.83/x
  3. Step 3: Cross multiply
    2,279.77x = 3,146.08 × 1,231.83
  4. Step 4: Simplify right side
    2,279.77x = 3,875,435.73
  5. Step 5: Solve for x
    x = 3,875,435.73/2,279.77
  6. Step 6: Final answer
    x = 1,699.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.