Home / 3,977.36-5,961.72-1,783.04

Finding the Fourth Proportional to 3,977.36, 5,961.72 and 1,783.04

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Solution

The fourth proportional to 3,977.36, 5,961.72 and 1,783.04 is: 2,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.36 : 5,961.72 = 1,783.04 : x
  2. Step 2: Convert to fraction form
    3,977.36/5,961.72 = 1,783.04/x
  3. Step 3: Cross multiply
    3,977.36x = 5,961.72 × 1,783.04
  4. Step 4: Simplify right side
    3,977.36x = 10,629,985.23
  5. Step 5: Solve for x
    x = 10,629,985.23/3,977.36
  6. Step 6: Final answer
    x = 2,672.62

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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.