Home / 3,220.96-4,445.99-1,962.83

Finding the Fourth Proportional to 3,220.96, 4,445.99 and 1,962.83

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Solution

The fourth proportional to 3,220.96, 4,445.99 and 1,962.83 is: 2,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.96 : 4,445.99 = 1,962.83 : x
  2. Step 2: Convert to fraction form
    3,220.96/4,445.99 = 1,962.83/x
  3. Step 3: Cross multiply
    3,220.96x = 4,445.99 × 1,962.83
  4. Step 4: Simplify right side
    3,220.96x = 8,726,722.55
  5. Step 5: Solve for x
    x = 8,726,722.55/3,220.96
  6. Step 6: Final answer
    x = 2,709.35

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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.