Home / 3,177.23-4,383.87-1,918.49

Finding the Fourth Proportional to 3,177.23, 4,383.87 and 1,918.49

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Solution

The fourth proportional to 3,177.23, 4,383.87 and 1,918.49 is: 2,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.23 : 4,383.87 = 1,918.49 : x
  2. Step 2: Convert to fraction form
    3,177.23/4,383.87 = 1,918.49/x
  3. Step 3: Cross multiply
    3,177.23x = 4,383.87 × 1,918.49
  4. Step 4: Simplify right side
    3,177.23x = 8,410,410.76
  5. Step 5: Solve for x
    x = 8,410,410.76/3,177.23
  6. Step 6: Final answer
    x = 2,647.09

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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.