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Finding the Fourth Proportional to 4,978.26, 6,872.18 and 3,363.54

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Solution

The fourth proportional to 4,978.26, 6,872.18 and 3,363.54 is: 4,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978.26 : 6,872.18 = 3,363.54 : x
  2. Step 2: Convert to fraction form
    4,978.26/6,872.18 = 3,363.54/x
  3. Step 3: Cross multiply
    4,978.26x = 6,872.18 × 3,363.54
  4. Step 4: Simplify right side
    4,978.26x = 23,114,852.32
  5. Step 5: Solve for x
    x = 23,114,852.32/4,978.26
  6. Step 6: Final answer
    x = 4,643.16

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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.