Home / 5,692.20-7,850.70-4,209.90

Finding the Fourth Proportional to 5,692.20, 7,850.70 and 4,209.90

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Solution

The fourth proportional to 5,692.20, 7,850.70 and 4,209.90 is: 5,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,692.20 : 7,850.70 = 4,209.90 : x
  2. Step 2: Convert to fraction form
    5,692.20/7,850.70 = 4,209.90/x
  3. Step 3: Cross multiply
    5,692.20x = 7,850.70 × 4,209.90
  4. Step 4: Simplify right side
    5,692.20x = 33,050,661.93
  5. Step 5: Solve for x
    x = 33,050,661.93/5,692.20
  6. Step 6: Final answer
    x = 5,806.31

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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.