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Finding the Fourth Proportional to 6,377.90, 8,800.16 and 3,859.52

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Solution

The fourth proportional to 6,377.90, 8,800.16 and 3,859.52 is: 5,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.90 : 8,800.16 = 3,859.52 : x
  2. Step 2: Convert to fraction form
    6,377.90/8,800.16 = 3,859.52/x
  3. Step 3: Cross multiply
    6,377.90x = 8,800.16 × 3,859.52
  4. Step 4: Simplify right side
    6,377.90x = 33,964,396.23
  5. Step 5: Solve for x
    x = 33,964,396.23/6,377.90
  6. Step 6: Final answer
    x = 5,325.32

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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.