Home / 2,786.85-3,845.97-1,607.92

Finding the Fourth Proportional to 2,786.85, 3,845.97 and 1,607.92

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Solution

The fourth proportional to 2,786.85, 3,845.97 and 1,607.92 is: 2,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.85 : 3,845.97 = 1,607.92 : x
  2. Step 2: Convert to fraction form
    2,786.85/3,845.97 = 1,607.92/x
  3. Step 3: Cross multiply
    2,786.85x = 3,845.97 × 1,607.92
  4. Step 4: Simplify right side
    2,786.85x = 6,184,012.08
  5. Step 5: Solve for x
    x = 6,184,012.08/2,786.85
  6. Step 6: Final answer
    x = 2,219.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.