Home / 6,429.21-8,872.23-3,776.86

Finding the Fourth Proportional to 6,429.21, 8,872.23 and 3,776.86

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Solution

The fourth proportional to 6,429.21, 8,872.23 and 3,776.86 is: 5,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.21 : 8,872.23 = 3,776.86 : x
  2. Step 2: Convert to fraction form
    6,429.21/8,872.23 = 3,776.86/x
  3. Step 3: Cross multiply
    6,429.21x = 8,872.23 × 3,776.86
  4. Step 4: Simplify right side
    6,429.21x = 33,509,170.60
  5. Step 5: Solve for x
    x = 33,509,170.60/6,429.21
  6. Step 6: Final answer
    x = 5,212.02

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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.