Home / 1,745.76-2,620.98-1,119.36

Finding the Fourth Proportional to 1,745.76, 2,620.98 and 1,119.36

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Solution

The fourth proportional to 1,745.76, 2,620.98 and 1,119.36 is: 1,680.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.76 : 2,620.98 = 1,119.36 : x
  2. Step 2: Convert to fraction form
    1,745.76/2,620.98 = 1,119.36/x
  3. Step 3: Cross multiply
    1,745.76x = 2,620.98 × 1,119.36
  4. Step 4: Simplify right side
    1,745.76x = 2,933,820.17
  5. Step 5: Solve for x
    x = 2,933,820.17/1,745.76
  6. Step 6: Final answer
    x = 1,680.54

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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.