Home / 6,221.62-8,585.86-3,389.04

Finding the Fourth Proportional to 6,221.62, 8,585.86 and 3,389.04

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Solution

The fourth proportional to 6,221.62, 8,585.86 and 3,389.04 is: 4,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.62 : 8,585.86 = 3,389.04 : x
  2. Step 2: Convert to fraction form
    6,221.62/8,585.86 = 3,389.04/x
  3. Step 3: Cross multiply
    6,221.62x = 8,585.86 × 3,389.04
  4. Step 4: Simplify right side
    6,221.62x = 29,097,822.97
  5. Step 5: Solve for x
    x = 29,097,822.97/6,221.62
  6. Step 6: Final answer
    x = 4,676.89

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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.