Home / 6,215.35-8,577.19-3,420.85

Finding the Fourth Proportional to 6,215.35, 8,577.19 and 3,420.85

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Solution

The fourth proportional to 6,215.35, 8,577.19 and 3,420.85 is: 4,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.35 : 8,577.19 = 3,420.85 : x
  2. Step 2: Convert to fraction form
    6,215.35/8,577.19 = 3,420.85/x
  3. Step 3: Cross multiply
    6,215.35x = 8,577.19 × 3,420.85
  4. Step 4: Simplify right side
    6,215.35x = 29,341,246.08
  5. Step 5: Solve for x
    x = 29,341,246.08/6,215.35
  6. Step 6: Final answer
    x = 4,720.78

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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.