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Finding the Fourth Proportional to 7,842.03, 11,759.67 and 2,908.05

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Solution

The fourth proportional to 7,842.03, 11,759.67 and 2,908.05 is: 4,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.03 : 11,759.67 = 2,908.05 : x
  2. Step 2: Convert to fraction form
    7,842.03/11,759.67 = 2,908.05/x
  3. Step 3: Cross multiply
    7,842.03x = 11,759.67 × 2,908.05
  4. Step 4: Simplify right side
    7,842.03x = 34,197,693.80
  5. Step 5: Solve for x
    x = 34,197,693.80/7,842.03
  6. Step 6: Final answer
    x = 4,360.82

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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.