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Finding the Fourth Proportional to 3,143.34, 4,714.92 and 834.84

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Solution

The fourth proportional to 3,143.34, 4,714.92 and 834.84 is: 1,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.34 : 4,714.92 = 834.84 : x
  2. Step 2: Convert to fraction form
    3,143.34/4,714.92 = 834.84/x
  3. Step 3: Cross multiply
    3,143.34x = 4,714.92 × 834.84
  4. Step 4: Simplify right side
    3,143.34x = 3,936,203.81
  5. Step 5: Solve for x
    x = 3,936,203.81/3,143.34
  6. Step 6: Final answer
    x = 1,252.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.