Home / 2,786.90-3,845.94-1,607.99

Finding the Fourth Proportional to 2,786.90, 3,845.94 and 1,607.99

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Solution

The fourth proportional to 2,786.90, 3,845.94 and 1,607.99 is: 2,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.90 : 3,845.94 = 1,607.99 : x
  2. Step 2: Convert to fraction form
    2,786.90/3,845.94 = 1,607.99/x
  3. Step 3: Cross multiply
    2,786.90x = 3,845.94 × 1,607.99
  4. Step 4: Simplify right side
    2,786.90x = 6,184,225.02
  5. Step 5: Solve for x
    x = 6,184,225.02/2,786.90
  6. Step 6: Final answer
    x = 2,219.04

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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.