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Finding the Fourth Proportional to 6,560.78, 9,841.06 and 3,929.02

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Solution

The fourth proportional to 6,560.78, 9,841.06 and 3,929.02 is: 5,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,560.78 : 9,841.06 = 3,929.02 : x
  2. Step 2: Convert to fraction form
    6,560.78/9,841.06 = 3,929.02/x
  3. Step 3: Cross multiply
    6,560.78x = 9,841.06 × 3,929.02
  4. Step 4: Simplify right side
    6,560.78x = 38,665,721.56
  5. Step 5: Solve for x
    x = 38,665,721.56/6,560.78
  6. Step 6: Final answer
    x = 5,893.46

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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.