Home / 1,768.06-2,440.80-1,105.28

Finding the Fourth Proportional to 1,768.06, 2,440.80 and 1,105.28

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Solution

The fourth proportional to 1,768.06, 2,440.80 and 1,105.28 is: 1,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.06 : 2,440.80 = 1,105.28 : x
  2. Step 2: Convert to fraction form
    1,768.06/2,440.80 = 1,105.28/x
  3. Step 3: Cross multiply
    1,768.06x = 2,440.80 × 1,105.28
  4. Step 4: Simplify right side
    1,768.06x = 2,697,767.42
  5. Step 5: Solve for x
    x = 2,697,767.42/1,768.06
  6. Step 6: Final answer
    x = 1,525.83

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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.