Home / 6,439.43-8,886.41-3,786.84

Finding the Fourth Proportional to 6,439.43, 8,886.41 and 3,786.84

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Solution

The fourth proportional to 6,439.43, 8,886.41 and 3,786.84 is: 5,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.43 : 8,886.41 = 3,786.84 : x
  2. Step 2: Convert to fraction form
    6,439.43/8,886.41 = 3,786.84/x
  3. Step 3: Cross multiply
    6,439.43x = 8,886.41 × 3,786.84
  4. Step 4: Simplify right side
    6,439.43x = 33,651,393.91
  5. Step 5: Solve for x
    x = 33,651,393.91/6,439.43
  6. Step 6: Final answer
    x = 5,225.84

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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.