Home / 3,201.49-4,418.40-1,876.30

Finding the Fourth Proportional to 3,201.49, 4,418.40 and 1,876.30

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Solution

The fourth proportional to 3,201.49, 4,418.40 and 1,876.30 is: 2,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.49 : 4,418.40 = 1,876.30 : x
  2. Step 2: Convert to fraction form
    3,201.49/4,418.40 = 1,876.30/x
  3. Step 3: Cross multiply
    3,201.49x = 4,418.40 × 1,876.30
  4. Step 4: Simplify right side
    3,201.49x = 8,290,243.92
  5. Step 5: Solve for x
    x = 8,290,243.92/3,201.49
  6. Step 6: Final answer
    x = 2,589.50

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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.