Home / 5,427.36-7,480.80-3,745.92

Finding the Fourth Proportional to 5,427.36, 7,480.80 and 3,745.92

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Solution

The fourth proportional to 5,427.36, 7,480.80 and 3,745.92 is: 5,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.36 : 7,480.80 = 3,745.92 : x
  2. Step 2: Convert to fraction form
    5,427.36/7,480.80 = 3,745.92/x
  3. Step 3: Cross multiply
    5,427.36x = 7,480.80 × 3,745.92
  4. Step 4: Simplify right side
    5,427.36x = 28,022,478.34
  5. Step 5: Solve for x
    x = 28,022,478.34/5,427.36
  6. Step 6: Final answer
    x = 5,163.19

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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.