Home / 5,198.12-7,799.10-1,913.36

Finding the Fourth Proportional to 5,198.12, 7,799.10 and 1,913.36

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Solution

The fourth proportional to 5,198.12, 7,799.10 and 1,913.36 is: 2,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.12 : 7,799.10 = 1,913.36 : x
  2. Step 2: Convert to fraction form
    5,198.12/7,799.10 = 1,913.36/x
  3. Step 3: Cross multiply
    5,198.12x = 7,799.10 × 1,913.36
  4. Step 4: Simplify right side
    5,198.12x = 14,922,485.98
  5. Step 5: Solve for x
    x = 14,922,485.98/5,198.12
  6. Step 6: Final answer
    x = 2,870.75

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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.