Home / 6,122.08-8,448.60-3,638.08

Finding the Fourth Proportional to 6,122.08, 8,448.60 and 3,638.08

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Solution

The fourth proportional to 6,122.08, 8,448.60 and 3,638.08 is: 5,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.08 : 8,448.60 = 3,638.08 : x
  2. Step 2: Convert to fraction form
    6,122.08/8,448.60 = 3,638.08/x
  3. Step 3: Cross multiply
    6,122.08x = 8,448.60 × 3,638.08
  4. Step 4: Simplify right side
    6,122.08x = 30,736,682.69
  5. Step 5: Solve for x
    x = 30,736,682.69/6,122.08
  6. Step 6: Final answer
    x = 5,020.63

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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.