Home / 4,222.10-6,333.15-3,128.60

Finding the Fourth Proportional to 4,222.10, 6,333.15 and 3,128.60

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Solution

The fourth proportional to 4,222.10, 6,333.15 and 3,128.60 is: 4,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.10 : 6,333.15 = 3,128.60 : x
  2. Step 2: Convert to fraction form
    4,222.10/6,333.15 = 3,128.60/x
  3. Step 3: Cross multiply
    4,222.10x = 6,333.15 × 3,128.60
  4. Step 4: Simplify right side
    4,222.10x = 19,813,893.09
  5. Step 5: Solve for x
    x = 19,813,893.09/4,222.10
  6. Step 6: Final answer
    x = 4,692.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.