Home / 5,418.24-8,155.84-4,135.68

Finding the Fourth Proportional to 5,418.24, 8,155.84 and 4,135.68

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Solution

The fourth proportional to 5,418.24, 8,155.84 and 4,135.68 is: 6,225.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.24 : 8,155.84 = 4,135.68 : x
  2. Step 2: Convert to fraction form
    5,418.24/8,155.84 = 4,135.68/x
  3. Step 3: Cross multiply
    5,418.24x = 8,155.84 × 4,135.68
  4. Step 4: Simplify right side
    5,418.24x = 33,729,944.37
  5. Step 5: Solve for x
    x = 33,729,944.37/5,418.24
  6. Step 6: Final answer
    x = 6,225.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.