Home / 3,623.58-5,435.64-2,172.06

Finding the Fourth Proportional to 3,623.58, 5,435.64 and 2,172.06

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Solution

The fourth proportional to 3,623.58, 5,435.64 and 2,172.06 is: 3,258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.58 : 5,435.64 = 2,172.06 : x
  2. Step 2: Convert to fraction form
    3,623.58/5,435.64 = 2,172.06/x
  3. Step 3: Cross multiply
    3,623.58x = 5,435.64 × 2,172.06
  4. Step 4: Simplify right side
    3,623.58x = 11,806,536.22
  5. Step 5: Solve for x
    x = 11,806,536.22/3,623.58
  6. Step 6: Final answer
    x = 3,258.25

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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.