Home / 5,418.13-7,477.57-3,906.93

Finding the Fourth Proportional to 5,418.13, 7,477.57 and 3,906.93

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Solution

The fourth proportional to 5,418.13, 7,477.57 and 3,906.93 is: 5,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.13 : 7,477.57 = 3,906.93 : x
  2. Step 2: Convert to fraction form
    5,418.13/7,477.57 = 3,906.93/x
  3. Step 3: Cross multiply
    5,418.13x = 7,477.57 × 3,906.93
  4. Step 4: Simplify right side
    5,418.13x = 29,214,323.03
  5. Step 5: Solve for x
    x = 29,214,323.03/5,418.13
  6. Step 6: Final answer
    x = 5,391.96

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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.