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Finding the Fourth Proportional to 6,714.78, 9,266.40 and 3,730.50

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Solution

The fourth proportional to 6,714.78, 9,266.40 and 3,730.50 is: 5,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,714.78 : 9,266.40 = 3,730.50 : x
  2. Step 2: Convert to fraction form
    6,714.78/9,266.40 = 3,730.50/x
  3. Step 3: Cross multiply
    6,714.78x = 9,266.40 × 3,730.50
  4. Step 4: Simplify right side
    6,714.78x = 34,568,305.20
  5. Step 5: Solve for x
    x = 34,568,305.20/6,714.78
  6. Step 6: Final answer
    x = 5,148.09

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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.