Home / 6,439.10-8,885.43-3,786.08

Finding the Fourth Proportional to 6,439.10, 8,885.43 and 3,786.08

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Solution

The fourth proportional to 6,439.10, 8,885.43 and 3,786.08 is: 5,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.10 : 8,885.43 = 3,786.08 : x
  2. Step 2: Convert to fraction form
    6,439.10/8,885.43 = 3,786.08/x
  3. Step 3: Cross multiply
    6,439.10x = 8,885.43 × 3,786.08
  4. Step 4: Simplify right side
    6,439.10x = 33,640,904.39
  5. Step 5: Solve for x
    x = 33,640,904.39/6,439.10
  6. Step 6: Final answer
    x = 5,224.48

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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.