Home / 6,728.96-9,290.52-4,212.08

Finding the Fourth Proportional to 6,728.96, 9,290.52 and 4,212.08

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Solution

The fourth proportional to 6,728.96, 9,290.52 and 4,212.08 is: 5,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.96 : 9,290.52 = 4,212.08 : x
  2. Step 2: Convert to fraction form
    6,728.96/9,290.52 = 4,212.08/x
  3. Step 3: Cross multiply
    6,728.96x = 9,290.52 × 4,212.08
  4. Step 4: Simplify right side
    6,728.96x = 39,132,367.03
  5. Step 5: Solve for x
    x = 39,132,367.03/6,728.96
  6. Step 6: Final answer
    x = 5,815.52

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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.