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Finding the Fourth Proportional to 6,364.43, 8,786.57 and 4,239.39

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Solution

The fourth proportional to 6,364.43, 8,786.57 and 4,239.39 is: 5,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.43 : 8,786.57 = 4,239.39 : x
  2. Step 2: Convert to fraction form
    6,364.43/8,786.57 = 4,239.39/x
  3. Step 3: Cross multiply
    6,364.43x = 8,786.57 × 4,239.39
  4. Step 4: Simplify right side
    6,364.43x = 37,249,675.80
  5. Step 5: Solve for x
    x = 37,249,675.80/6,364.43
  6. Step 6: Final answer
    x = 5,852.80

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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.