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Finding the Fourth Proportional to 3,994.84, 5,986.18 and 1,685.08

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Solution

The fourth proportional to 3,994.84, 5,986.18 and 1,685.08 is: 2,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.84 : 5,986.18 = 1,685.08 : x
  2. Step 2: Convert to fraction form
    3,994.84/5,986.18 = 1,685.08/x
  3. Step 3: Cross multiply
    3,994.84x = 5,986.18 × 1,685.08
  4. Step 4: Simplify right side
    3,994.84x = 10,087,192.19
  5. Step 5: Solve for x
    x = 10,087,192.19/3,994.84
  6. Step 6: Final answer
    x = 2,525.06

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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.