Home / 3,579.12-5,369.63-2,175.12

Finding the Fourth Proportional to 3,579.12, 5,369.63 and 2,175.12

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Solution

The fourth proportional to 3,579.12, 5,369.63 and 2,175.12 is: 3,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.12 : 5,369.63 = 2,175.12 : x
  2. Step 2: Convert to fraction form
    3,579.12/5,369.63 = 2,175.12/x
  3. Step 3: Cross multiply
    3,579.12x = 5,369.63 × 2,175.12
  4. Step 4: Simplify right side
    3,579.12x = 11,679,578.73
  5. Step 5: Solve for x
    x = 11,679,578.73/3,579.12
  6. Step 6: Final answer
    x = 3,263.25

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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.