Home / 4,420.85-6,635.21-3,321.86

Finding the Fourth Proportional to 4,420.85, 6,635.21 and 3,321.86

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Solution

The fourth proportional to 4,420.85, 6,635.21 and 3,321.86 is: 4,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.85 : 6,635.21 = 3,321.86 : x
  2. Step 2: Convert to fraction form
    4,420.85/6,635.21 = 3,321.86/x
  3. Step 3: Cross multiply
    4,420.85x = 6,635.21 × 3,321.86
  4. Step 4: Simplify right side
    4,420.85x = 22,041,188.91
  5. Step 5: Solve for x
    x = 22,041,188.91/4,420.85
  6. Step 6: Final answer
    x = 4,985.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.