Home / 3,112.77-4,669.16-1,813.33

Finding the Fourth Proportional to 3,112.77, 4,669.16 and 1,813.33

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Solution

The fourth proportional to 3,112.77, 4,669.16 and 1,813.33 is: 2,719.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.77 : 4,669.16 = 1,813.33 : x
  2. Step 2: Convert to fraction form
    3,112.77/4,669.16 = 1,813.33/x
  3. Step 3: Cross multiply
    3,112.77x = 4,669.16 × 1,813.33
  4. Step 4: Simplify right side
    3,112.77x = 8,466,695.49
  5. Step 5: Solve for x
    x = 8,466,695.49/3,112.77
  6. Step 6: Final answer
    x = 2,719.99

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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.