Home / 3,220.40-4,443.80-1,894.52

Finding the Fourth Proportional to 3,220.40, 4,443.80 and 1,894.52

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Solution

The fourth proportional to 3,220.40, 4,443.80 and 1,894.52 is: 2,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.40 : 4,443.80 = 1,894.52 : x
  2. Step 2: Convert to fraction form
    3,220.40/4,443.80 = 1,894.52/x
  3. Step 3: Cross multiply
    3,220.40x = 4,443.80 × 1,894.52
  4. Step 4: Simplify right side
    3,220.40x = 8,418,867.98
  5. Step 5: Solve for x
    x = 8,418,867.98/3,220.40
  6. Step 6: Final answer
    x = 2,614.23

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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.