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Finding the Fourth Proportional to 4,999.66, 6,901.94 and 3,878.01

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Solution

The fourth proportional to 4,999.66, 6,901.94 and 3,878.01 is: 5,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.66 : 6,901.94 = 3,878.01 : x
  2. Step 2: Convert to fraction form
    4,999.66/6,901.94 = 3,878.01/x
  3. Step 3: Cross multiply
    4,999.66x = 6,901.94 × 3,878.01
  4. Step 4: Simplify right side
    4,999.66x = 26,765,802.03
  5. Step 5: Solve for x
    x = 26,765,802.03/4,999.66
  6. Step 6: Final answer
    x = 5,353.53

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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.