Home / 1,745.25-2,408.38-948.54

Finding the Fourth Proportional to 1,745.25, 2,408.38 and 948.54

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Solution

The fourth proportional to 1,745.25, 2,408.38 and 948.54 is: 1,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.25 : 2,408.38 = 948.54 : x
  2. Step 2: Convert to fraction form
    1,745.25/2,408.38 = 948.54/x
  3. Step 3: Cross multiply
    1,745.25x = 2,408.38 × 948.54
  4. Step 4: Simplify right side
    1,745.25x = 2,284,444.77
  5. Step 5: Solve for x
    x = 2,284,444.77/1,745.25
  6. Step 6: Final answer
    x = 1,308.95

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1.5x scale

Why These Related Problems?

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