Home / 3,177.44-4,383.84-1,918.90

Finding the Fourth Proportional to 3,177.44, 4,383.84 and 1,918.90

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Solution

The fourth proportional to 3,177.44, 4,383.84 and 1,918.90 is: 2,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.44 : 4,383.84 = 1,918.90 : x
  2. Step 2: Convert to fraction form
    3,177.44/4,383.84 = 1,918.90/x
  3. Step 3: Cross multiply
    3,177.44x = 4,383.84 × 1,918.90
  4. Step 4: Simplify right side
    3,177.44x = 8,412,150.58
  5. Step 5: Solve for x
    x = 8,412,150.58/3,177.44
  6. Step 6: Final answer
    x = 2,647.46

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1.5x scale

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.