Home / 3,259.80-4,878.72-2,990.04

Finding the Fourth Proportional to 3,259.80, 4,878.72 and 2,990.04

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Solution

The fourth proportional to 3,259.80, 4,878.72 and 2,990.04 is: 4,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.80 : 4,878.72 = 2,990.04 : x
  2. Step 2: Convert to fraction form
    3,259.80/4,878.72 = 2,990.04/x
  3. Step 3: Cross multiply
    3,259.80x = 4,878.72 × 2,990.04
  4. Step 4: Simplify right side
    3,259.80x = 14,587,567.95
  5. Step 5: Solve for x
    x = 14,587,567.95/3,259.80
  6. Step 6: Final answer
    x = 4,474.99

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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.