Home / 5,481.07-8,221.69-1,783.32

Finding the Fourth Proportional to 5,481.07, 8,221.69 and 1,783.32

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Solution

The fourth proportional to 5,481.07, 8,221.69 and 1,783.32 is: 2,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.07 : 8,221.69 = 1,783.32 : x
  2. Step 2: Convert to fraction form
    5,481.07/8,221.69 = 1,783.32/x
  3. Step 3: Cross multiply
    5,481.07x = 8,221.69 × 1,783.32
  4. Step 4: Simplify right side
    5,481.07x = 14,661,911.82
  5. Step 5: Solve for x
    x = 14,661,911.82/5,481.07
  6. Step 6: Final answer
    x = 2,675.01

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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.