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Finding the Fourth Proportional to 6,143.49, 8,478.02 and 3,348.99

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Solution

The fourth proportional to 6,143.49, 8,478.02 and 3,348.99 is: 4,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.49 : 8,478.02 = 3,348.99 : x
  2. Step 2: Convert to fraction form
    6,143.49/8,478.02 = 3,348.99/x
  3. Step 3: Cross multiply
    6,143.49x = 8,478.02 × 3,348.99
  4. Step 4: Simplify right side
    6,143.49x = 28,392,804.20
  5. Step 5: Solve for x
    x = 28,392,804.20/6,143.49
  6. Step 6: Final answer
    x = 4,621.61

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1.5x scale

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.