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Finding the Fourth Proportional to 6,371.07, 8,794.08 and 4,128.99

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Solution

The fourth proportional to 6,371.07, 8,794.08 and 4,128.99 is: 5,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.07 : 8,794.08 = 4,128.99 : x
  2. Step 2: Convert to fraction form
    6,371.07/8,794.08 = 4,128.99/x
  3. Step 3: Cross multiply
    6,371.07x = 8,794.08 × 4,128.99
  4. Step 4: Simplify right side
    6,371.07x = 36,310,668.38
  5. Step 5: Solve for x
    x = 36,310,668.38/6,371.07
  6. Step 6: Final answer
    x = 5,699.30

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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.