Home / 7,185.80-9,914.91-4,201.05

Finding the Fourth Proportional to 7,185.80, 9,914.91 and 4,201.05

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Solution

The fourth proportional to 7,185.80, 9,914.91 and 4,201.05 is: 5,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.80 : 9,914.91 = 4,201.05 : x
  2. Step 2: Convert to fraction form
    7,185.80/9,914.91 = 4,201.05/x
  3. Step 3: Cross multiply
    7,185.80x = 9,914.91 × 4,201.05
  4. Step 4: Simplify right side
    7,185.80x = 41,653,054.08
  5. Step 5: Solve for x
    x = 41,653,054.08/7,185.80
  6. Step 6: Final answer
    x = 5,796.58

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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.