Home / 7,055.36-9,736.80-4,221.44

Finding the Fourth Proportional to 7,055.36, 9,736.80 and 4,221.44

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Solution

The fourth proportional to 7,055.36, 9,736.80 and 4,221.44 is: 5,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,055.36 : 9,736.80 = 4,221.44 : x
  2. Step 2: Convert to fraction form
    7,055.36/9,736.80 = 4,221.44/x
  3. Step 3: Cross multiply
    7,055.36x = 9,736.80 × 4,221.44
  4. Step 4: Simplify right side
    7,055.36x = 41,103,316.99
  5. Step 5: Solve for x
    x = 41,103,316.99/7,055.36
  6. Step 6: Final answer
    x = 5,825.83

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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.