Home / 3,622.45-5,427.99-2,160.79

Finding the Fourth Proportional to 3,622.45, 5,427.99 and 2,160.79

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Solution

The fourth proportional to 3,622.45, 5,427.99 and 2,160.79 is: 3,237.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.45 : 5,427.99 = 2,160.79 : x
  2. Step 2: Convert to fraction form
    3,622.45/5,427.99 = 2,160.79/x
  3. Step 3: Cross multiply
    3,622.45x = 5,427.99 × 2,160.79
  4. Step 4: Simplify right side
    3,622.45x = 11,728,746.51
  5. Step 5: Solve for x
    x = 11,728,746.51/3,622.45
  6. Step 6: Final answer
    x = 3,237.79

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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.