Home / 6,622.30-9,138.99-3,638.35

Finding the Fourth Proportional to 6,622.30, 9,138.99 and 3,638.35

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Solution

The fourth proportional to 6,622.30, 9,138.99 and 3,638.35 is: 5,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.30 : 9,138.99 = 3,638.35 : x
  2. Step 2: Convert to fraction form
    6,622.30/9,138.99 = 3,638.35/x
  3. Step 3: Cross multiply
    6,622.30x = 9,138.99 × 3,638.35
  4. Step 4: Simplify right side
    6,622.30x = 33,250,869.33
  5. Step 5: Solve for x
    x = 33,250,869.33/6,622.30
  6. Step 6: Final answer
    x = 5,021.04

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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.