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Finding the Fourth Proportional to 6,143.22, 8,477.62 and 3,348.72

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Solution

The fourth proportional to 6,143.22, 8,477.62 and 3,348.72 is: 4,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.22 : 8,477.62 = 3,348.72 : x
  2. Step 2: Convert to fraction form
    6,143.22/8,477.62 = 3,348.72/x
  3. Step 3: Cross multiply
    6,143.22x = 8,477.62 × 3,348.72
  4. Step 4: Simplify right side
    6,143.22x = 28,389,175.65
  5. Step 5: Solve for x
    x = 28,389,175.65/6,143.22
  6. Step 6: Final answer
    x = 4,621.22

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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.