Home / 3,970.49-5,479.44-2,202.09

Finding the Fourth Proportional to 3,970.49, 5,479.44 and 2,202.09

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Solution

The fourth proportional to 3,970.49, 5,479.44 and 2,202.09 is: 3,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.49 : 5,479.44 = 2,202.09 : x
  2. Step 2: Convert to fraction form
    3,970.49/5,479.44 = 2,202.09/x
  3. Step 3: Cross multiply
    3,970.49x = 5,479.44 × 2,202.09
  4. Step 4: Simplify right side
    3,970.49x = 12,066,220.03
  5. Step 5: Solve for x
    x = 12,066,220.03/3,970.49
  6. Step 6: Final answer
    x = 3,038.98

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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.