Home / 3,203.12-4,419.28-1,876.80

Finding the Fourth Proportional to 3,203.12, 4,419.28 and 1,876.80

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Solution

The fourth proportional to 3,203.12, 4,419.28 and 1,876.80 is: 2,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.12 : 4,419.28 = 1,876.80 : x
  2. Step 2: Convert to fraction form
    3,203.12/4,419.28 = 1,876.80/x
  3. Step 3: Cross multiply
    3,203.12x = 4,419.28 × 1,876.80
  4. Step 4: Simplify right side
    3,203.12x = 8,294,104.70
  5. Step 5: Solve for x
    x = 8,294,104.70/3,203.12
  6. Step 6: Final answer
    x = 2,589.38

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1.5x scale

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.