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Finding the Fourth Proportional to 5,055.08, 6,978.93 and 3,850.61

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Solution

The fourth proportional to 5,055.08, 6,978.93 and 3,850.61 is: 5,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.08 : 6,978.93 = 3,850.61 : x
  2. Step 2: Convert to fraction form
    5,055.08/6,978.93 = 3,850.61/x
  3. Step 3: Cross multiply
    5,055.08x = 6,978.93 × 3,850.61
  4. Step 4: Simplify right side
    5,055.08x = 26,873,088.31
  5. Step 5: Solve for x
    x = 26,873,088.31/5,055.08
  6. Step 6: Final answer
    x = 5,316.06

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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.