Home / 3,455.22-4,766.66-2,128.44

Finding the Fourth Proportional to 3,455.22, 4,766.66 and 2,128.44

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Solution

The fourth proportional to 3,455.22, 4,766.66 and 2,128.44 is: 2,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.22 : 4,766.66 = 2,128.44 : x
  2. Step 2: Convert to fraction form
    3,455.22/4,766.66 = 2,128.44/x
  3. Step 3: Cross multiply
    3,455.22x = 4,766.66 × 2,128.44
  4. Step 4: Simplify right side
    3,455.22x = 10,145,549.81
  5. Step 5: Solve for x
    x = 10,145,549.81/3,455.22
  6. Step 6: Final answer
    x = 2,936.30

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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.