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Finding the Fourth Proportional to 6,481.99, 9,725.88 and 3,148.40

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Solution

The fourth proportional to 6,481.99, 9,725.88 and 3,148.40 is: 4,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.99 : 9,725.88 = 3,148.40 : x
  2. Step 2: Convert to fraction form
    6,481.99/9,725.88 = 3,148.40/x
  3. Step 3: Cross multiply
    6,481.99x = 9,725.88 × 3,148.40
  4. Step 4: Simplify right side
    6,481.99x = 30,620,984.91
  5. Step 5: Solve for x
    x = 30,620,984.91/6,481.99
  6. Step 6: Final answer
    x = 4,724.01

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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.