Home / 1,830.28-2,745.12-531.44

Finding the Fourth Proportional to 1,830.28, 2,745.12 and 531.44

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Solution

The fourth proportional to 1,830.28, 2,745.12 and 531.44 is: 797.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.28 : 2,745.12 = 531.44 : x
  2. Step 2: Convert to fraction form
    1,830.28/2,745.12 = 531.44/x
  3. Step 3: Cross multiply
    1,830.28x = 2,745.12 × 531.44
  4. Step 4: Simplify right side
    1,830.28x = 1,458,866.57
  5. Step 5: Solve for x
    x = 1,458,866.57/1,830.28
  6. Step 6: Final answer
    x = 797.07

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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.