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Finding the Fourth Proportional to 6,377.96, 8,802.38 and 3,860.96

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Solution

The fourth proportional to 6,377.96, 8,802.38 and 3,860.96 is: 5,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.96 : 8,802.38 = 3,860.96 : x
  2. Step 2: Convert to fraction form
    6,377.96/8,802.38 = 3,860.96/x
  3. Step 3: Cross multiply
    6,377.96x = 8,802.38 × 3,860.96
  4. Step 4: Simplify right side
    6,377.96x = 33,985,573.77
  5. Step 5: Solve for x
    x = 33,985,573.77/6,377.96
  6. Step 6: Final answer
    x = 5,328.59

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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.