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Finding the Fourth Proportional to 3,618.94, 4,994.34 and 2,127.34

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Solution

The fourth proportional to 3,618.94, 4,994.34 and 2,127.34 is: 2,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.94 : 4,994.34 = 2,127.34 : x
  2. Step 2: Convert to fraction form
    3,618.94/4,994.34 = 2,127.34/x
  3. Step 3: Cross multiply
    3,618.94x = 4,994.34 × 2,127.34
  4. Step 4: Simplify right side
    3,618.94x = 10,624,659.26
  5. Step 5: Solve for x
    x = 10,624,659.26/3,618.94
  6. Step 6: Final answer
    x = 2,935.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.