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Finding the Fourth Proportional to 6,142.50, 8,476.65 and 3,348

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Solution

The fourth proportional to 6,142.50, 8,476.65 and 3,348 is: 4,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.50 : 8,476.65 = 3,348 : x
  2. Step 2: Convert to fraction form
    6,142.50/8,476.65 = 3,348/x
  3. Step 3: Cross multiply
    6,142.50x = 8,476.65 × 3,348
  4. Step 4: Simplify right side
    6,142.50x = 28,379,824.20
  5. Step 5: Solve for x
    x = 28,379,824.20/6,142.50
  6. Step 6: Final answer
    x = 4,620.24

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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.