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Finding the Fourth Proportional to 1,994.60, 2,993.49 and 899.05

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Solution

The fourth proportional to 1,994.60, 2,993.49 and 899.05 is: 1,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.60 : 2,993.49 = 899.05 : x
  2. Step 2: Convert to fraction form
    1,994.60/2,993.49 = 899.05/x
  3. Step 3: Cross multiply
    1,994.60x = 2,993.49 × 899.05
  4. Step 4: Simplify right side
    1,994.60x = 2,691,296.81
  5. Step 5: Solve for x
    x = 2,691,296.81/1,994.60
  6. Step 6: Final answer
    x = 1,349.29

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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.