Home / 3,143.13-4,712.37-1,581.99

Finding the Fourth Proportional to 3,143.13, 4,712.37 and 1,581.99

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Solution

The fourth proportional to 3,143.13, 4,712.37 and 1,581.99 is: 2,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.13 : 4,712.37 = 1,581.99 : x
  2. Step 2: Convert to fraction form
    3,143.13/4,712.37 = 1,581.99/x
  3. Step 3: Cross multiply
    3,143.13x = 4,712.37 × 1,581.99
  4. Step 4: Simplify right side
    3,143.13x = 7,454,922.22
  5. Step 5: Solve for x
    x = 7,454,922.22/3,143.13
  6. Step 6: Final answer
    x = 2,371.81

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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.