Home / 3,091.26-4,637.66-2,145.69

Finding the Fourth Proportional to 3,091.26, 4,637.66 and 2,145.69

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Solution

The fourth proportional to 3,091.26, 4,637.66 and 2,145.69 is: 3,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.26 : 4,637.66 = 2,145.69 : x
  2. Step 2: Convert to fraction form
    3,091.26/4,637.66 = 2,145.69/x
  3. Step 3: Cross multiply
    3,091.26x = 4,637.66 × 2,145.69
  4. Step 4: Simplify right side
    3,091.26x = 9,950,969.96
  5. Step 5: Solve for x
    x = 9,950,969.96/3,091.26
  6. Step 6: Final answer
    x = 3,219.06

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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.