Home / 3,406.80-4,701.60-2,231.04

Finding the Fourth Proportional to 3,406.80, 4,701.60 and 2,231.04

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Solution

The fourth proportional to 3,406.80, 4,701.60 and 2,231.04 is: 3,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.80 : 4,701.60 = 2,231.04 : x
  2. Step 2: Convert to fraction form
    3,406.80/4,701.60 = 2,231.04/x
  3. Step 3: Cross multiply
    3,406.80x = 4,701.60 × 2,231.04
  4. Step 4: Simplify right side
    3,406.80x = 10,489,457.66
  5. Step 5: Solve for x
    x = 10,489,457.66/3,406.80
  6. Step 6: Final answer
    x = 3,078.98

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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.