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Finding the Fourth Proportional to 7,891.35, 11,838.88 and 2,344.74

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Solution

The fourth proportional to 7,891.35, 11,838.88 and 2,344.74 is: 3,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.35 : 11,838.88 = 2,344.74 : x
  2. Step 2: Convert to fraction form
    7,891.35/11,838.88 = 2,344.74/x
  3. Step 3: Cross multiply
    7,891.35x = 11,838.88 × 2,344.74
  4. Step 4: Simplify right side
    7,891.35x = 27,759,089.63
  5. Step 5: Solve for x
    x = 27,759,089.63/7,891.35
  6. Step 6: Final answer
    x = 3,517.66

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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.