Home / 3,219.75-4,443.68-1,893.45

Finding the Fourth Proportional to 3,219.75, 4,443.68 and 1,893.45

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Solution

The fourth proportional to 3,219.75, 4,443.68 and 1,893.45 is: 2,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.75 : 4,443.68 = 1,893.45 : x
  2. Step 2: Convert to fraction form
    3,219.75/4,443.68 = 1,893.45/x
  3. Step 3: Cross multiply
    3,219.75x = 4,443.68 × 1,893.45
  4. Step 4: Simplify right side
    3,219.75x = 8,413,885.90
  5. Step 5: Solve for x
    x = 8,413,885.90/3,219.75
  6. Step 6: Final answer
    x = 2,613.21

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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.