Home / 3,091.05-4,637.75-1,859.31

Finding the Fourth Proportional to 3,091.05, 4,637.75 and 1,859.31

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Solution

The fourth proportional to 3,091.05, 4,637.75 and 1,859.31 is: 2,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.05 : 4,637.75 = 1,859.31 : x
  2. Step 2: Convert to fraction form
    3,091.05/4,637.75 = 1,859.31/x
  3. Step 3: Cross multiply
    3,091.05x = 4,637.75 × 1,859.31
  4. Step 4: Simplify right side
    3,091.05x = 8,623,014.95
  5. Step 5: Solve for x
    x = 8,623,014.95/3,091.05
  6. Step 6: Final answer
    x = 2,789.67

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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.