Home / 2,830.21-4,245.28-1,993.82

Finding the Fourth Proportional to 2,830.21, 4,245.28 and 1,993.82

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Solution

The fourth proportional to 2,830.21, 4,245.28 and 1,993.82 is: 2,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.21 : 4,245.28 = 1,993.82 : x
  2. Step 2: Convert to fraction form
    2,830.21/4,245.28 = 1,993.82/x
  3. Step 3: Cross multiply
    2,830.21x = 4,245.28 × 1,993.82
  4. Step 4: Simplify right side
    2,830.21x = 8,464,297.96
  5. Step 5: Solve for x
    x = 8,464,297.96/2,830.21
  6. Step 6: Final answer
    x = 2,990.70

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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.