Home / 7,212.96-10,818.48-2,829.24

Finding the Fourth Proportional to 7,212.96, 10,818.48 and 2,829.24

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Solution

The fourth proportional to 7,212.96, 10,818.48 and 2,829.24 is: 4,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.96 : 10,818.48 = 2,829.24 : x
  2. Step 2: Convert to fraction form
    7,212.96/10,818.48 = 2,829.24/x
  3. Step 3: Cross multiply
    7,212.96x = 10,818.48 × 2,829.24
  4. Step 4: Simplify right side
    7,212.96x = 30,608,076.36
  5. Step 5: Solve for x
    x = 30,608,076.36/7,212.96
  6. Step 6: Final answer
    x = 4,243.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.