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Finding the Fourth Proportional to 7,994.91, 11,985.06 and 2,797.95

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Solution

The fourth proportional to 7,994.91, 11,985.06 and 2,797.95 is: 4,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.91 : 11,985.06 = 2,797.95 : x
  2. Step 2: Convert to fraction form
    7,994.91/11,985.06 = 2,797.95/x
  3. Step 3: Cross multiply
    7,994.91x = 11,985.06 × 2,797.95
  4. Step 4: Simplify right side
    7,994.91x = 33,533,598.63
  5. Step 5: Solve for x
    x = 33,533,598.63/7,994.91
  6. Step 6: Final answer
    x = 4,194.37

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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.