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Finding the Fourth Proportional to 1,994.32, 2,989.16 and 952.84

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Solution

The fourth proportional to 1,994.32, 2,989.16 and 952.84 is: 1,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.32 : 2,989.16 = 952.84 : x
  2. Step 2: Convert to fraction form
    1,994.32/2,989.16 = 952.84/x
  3. Step 3: Cross multiply
    1,994.32x = 2,989.16 × 952.84
  4. Step 4: Simplify right side
    1,994.32x = 2,848,191.21
  5. Step 5: Solve for x
    x = 2,848,191.21/1,994.32
  6. Step 6: Final answer
    x = 1,428.15

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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.