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Finding the Fourth Proportional to 6,154.64, 8,494.79 and 3,914.76

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Solution

The fourth proportional to 6,154.64, 8,494.79 and 3,914.76 is: 5,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,154.64 : 8,494.79 = 3,914.76 : x
  2. Step 2: Convert to fraction form
    6,154.64/8,494.79 = 3,914.76/x
  3. Step 3: Cross multiply
    6,154.64x = 8,494.79 × 3,914.76
  4. Step 4: Simplify right side
    6,154.64x = 33,255,044.53
  5. Step 5: Solve for x
    x = 33,255,044.53/6,154.64
  6. Step 6: Final answer
    x = 5,403.25

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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.