Home / 1,994.16-2,983.20-1,786.68

Finding the Fourth Proportional to 1,994.16, 2,983.20 and 1,786.68

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Solution

The fourth proportional to 1,994.16, 2,983.20 and 1,786.68 is: 2,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.16 : 2,983.20 = 1,786.68 : x
  2. Step 2: Convert to fraction form
    1,994.16/2,983.20 = 1,786.68/x
  3. Step 3: Cross multiply
    1,994.16x = 2,983.20 × 1,786.68
  4. Step 4: Simplify right side
    1,994.16x = 5,330,023.78
  5. Step 5: Solve for x
    x = 5,330,023.78/1,994.16
  6. Step 6: Final answer
    x = 2,672.82

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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.