Home / 6,439.32-8,885.52-3,786.12

Finding the Fourth Proportional to 6,439.32, 8,885.52 and 3,786.12

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Solution

The fourth proportional to 6,439.32, 8,885.52 and 3,786.12 is: 5,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.32 : 8,885.52 = 3,786.12 : x
  2. Step 2: Convert to fraction form
    6,439.32/8,885.52 = 3,786.12/x
  3. Step 3: Cross multiply
    6,439.32x = 8,885.52 × 3,786.12
  4. Step 4: Simplify right side
    6,439.32x = 33,641,644.98
  5. Step 5: Solve for x
    x = 33,641,644.98/6,439.32
  6. Step 6: Final answer
    x = 5,224.41

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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.