Home / 6,622.26-9,138.86-3,638.27

Finding the Fourth Proportional to 6,622.26, 9,138.86 and 3,638.27

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Solution

The fourth proportional to 6,622.26, 9,138.86 and 3,638.27 is: 5,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.26 : 9,138.86 = 3,638.27 : x
  2. Step 2: Convert to fraction form
    6,622.26/9,138.86 = 3,638.27/x
  3. Step 3: Cross multiply
    6,622.26x = 9,138.86 × 3,638.27
  4. Step 4: Simplify right side
    6,622.26x = 33,249,607.07
  5. Step 5: Solve for x
    x = 33,249,607.07/6,622.26
  6. Step 6: Final answer
    x = 5,020.89

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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.