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Finding the Fourth Proportional to 1,994.08, 2,992.12 and 898.22

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Solution

The fourth proportional to 1,994.08, 2,992.12 and 898.22 is: 1,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.08 : 2,992.12 = 898.22 : x
  2. Step 2: Convert to fraction form
    1,994.08/2,992.12 = 898.22/x
  3. Step 3: Cross multiply
    1,994.08x = 2,992.12 × 898.22
  4. Step 4: Simplify right side
    1,994.08x = 2,687,582.03
  5. Step 5: Solve for x
    x = 2,687,582.03/1,994.08
  6. Step 6: Final answer
    x = 1,347.78

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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.