Home / 3,399.62-4,692.47-2,220.89

Finding the Fourth Proportional to 3,399.62, 4,692.47 and 2,220.89

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Solution

The fourth proportional to 3,399.62, 4,692.47 and 2,220.89 is: 3,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.62 : 4,692.47 = 2,220.89 : x
  2. Step 2: Convert to fraction form
    3,399.62/4,692.47 = 2,220.89/x
  3. Step 3: Cross multiply
    3,399.62x = 4,692.47 × 2,220.89
  4. Step 4: Simplify right side
    3,399.62x = 10,421,425.13
  5. Step 5: Solve for x
    x = 10,421,425.13/3,399.62
  6. Step 6: Final answer
    x = 3,065.47

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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.