Home / 3,974.96-5,961.72-1,783.76

Finding the Fourth Proportional to 3,974.96, 5,961.72 and 1,783.76

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Solution

The fourth proportional to 3,974.96, 5,961.72 and 1,783.76 is: 2,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.96 : 5,961.72 = 1,783.76 : x
  2. Step 2: Convert to fraction form
    3,974.96/5,961.72 = 1,783.76/x
  3. Step 3: Cross multiply
    3,974.96x = 5,961.72 × 1,783.76
  4. Step 4: Simplify right side
    3,974.96x = 10,634,277.67
  5. Step 5: Solve for x
    x = 10,634,277.67/3,974.96
  6. Step 6: Final answer
    x = 2,675.32

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1.5x scale

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.