Home / 6,418.80-8,854.32-3,765.64

Finding the Fourth Proportional to 6,418.80, 8,854.32 and 3,765.64

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Solution

The fourth proportional to 6,418.80, 8,854.32 and 3,765.64 is: 5,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.80 : 8,854.32 = 3,765.64 : x
  2. Step 2: Convert to fraction form
    6,418.80/8,854.32 = 3,765.64/x
  3. Step 3: Cross multiply
    6,418.80x = 8,854.32 × 3,765.64
  4. Step 4: Simplify right side
    6,418.80x = 33,342,181.56
  5. Step 5: Solve for x
    x = 33,342,181.56/6,418.80
  6. Step 6: Final answer
    x = 5,194.46

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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.