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Finding the Fourth Proportional to 6,146.64, 8,479.95 and 3,784.68

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Solution

The fourth proportional to 6,146.64, 8,479.95 and 3,784.68 is: 5,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,146.64 : 8,479.95 = 3,784.68 : x
  2. Step 2: Convert to fraction form
    6,146.64/8,479.95 = 3,784.68/x
  3. Step 3: Cross multiply
    6,146.64x = 8,479.95 × 3,784.68
  4. Step 4: Simplify right side
    6,146.64x = 32,093,897.17
  5. Step 5: Solve for x
    x = 32,093,897.17/6,146.64
  6. Step 6: Final answer
    x = 5,221.37

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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.