Home / 4,321.49-6,480.60-1,855.04

Finding the Fourth Proportional to 4,321.49, 6,480.60 and 1,855.04

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Solution

The fourth proportional to 4,321.49, 6,480.60 and 1,855.04 is: 2,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.49 : 6,480.60 = 1,855.04 : x
  2. Step 2: Convert to fraction form
    4,321.49/6,480.60 = 1,855.04/x
  3. Step 3: Cross multiply
    4,321.49x = 6,480.60 × 1,855.04
  4. Step 4: Simplify right side
    4,321.49x = 12,021,739.82
  5. Step 5: Solve for x
    x = 12,021,739.82/4,321.49
  6. Step 6: Final answer
    x = 2,781.85

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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.