Home / 1,990.14-2,746.42-1,105.98

Finding the Fourth Proportional to 1,990.14, 2,746.42 and 1,105.98

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Solution

The fourth proportional to 1,990.14, 2,746.42 and 1,105.98 is: 1,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.14 : 2,746.42 = 1,105.98 : x
  2. Step 2: Convert to fraction form
    1,990.14/2,746.42 = 1,105.98/x
  3. Step 3: Cross multiply
    1,990.14x = 2,746.42 × 1,105.98
  4. Step 4: Simplify right side
    1,990.14x = 3,037,485.59
  5. Step 5: Solve for x
    x = 3,037,485.59/1,990.14
  6. Step 6: Final answer
    x = 1,526.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.