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Finding the Fourth Proportional to 6,405.54, 9,608.60 and 1,962.89

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Solution

The fourth proportional to 6,405.54, 9,608.60 and 1,962.89 is: 2,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.54 : 9,608.60 = 1,962.89 : x
  2. Step 2: Convert to fraction form
    6,405.54/9,608.60 = 1,962.89/x
  3. Step 3: Cross multiply
    6,405.54x = 9,608.60 × 1,962.89
  4. Step 4: Simplify right side
    6,405.54x = 18,860,581.72
  5. Step 5: Solve for x
    x = 18,860,581.72/6,405.54
  6. Step 6: Final answer
    x = 2,944.42

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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.