Home / 6,215.25-8,577.05-3,420.75

Finding the Fourth Proportional to 6,215.25, 8,577.05 and 3,420.75

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Solution

The fourth proportional to 6,215.25, 8,577.05 and 3,420.75 is: 4,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.25 : 8,577.05 = 3,420.75 : x
  2. Step 2: Convert to fraction form
    6,215.25/8,577.05 = 3,420.75/x
  3. Step 3: Cross multiply
    6,215.25x = 8,577.05 × 3,420.75
  4. Step 4: Simplify right side
    6,215.25x = 29,339,926.68
  5. Step 5: Solve for x
    x = 29,339,926.68/6,215.25
  6. Step 6: Final answer
    x = 4,720.64

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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.