Home / 5,481.66-8,220.75-1,783.05

Finding the Fourth Proportional to 5,481.66, 8,220.75 and 1,783.05

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Solution

The fourth proportional to 5,481.66, 8,220.75 and 1,783.05 is: 2,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.66 : 8,220.75 = 1,783.05 : x
  2. Step 2: Convert to fraction form
    5,481.66/8,220.75 = 1,783.05/x
  3. Step 3: Cross multiply
    5,481.66x = 8,220.75 × 1,783.05
  4. Step 4: Simplify right side
    5,481.66x = 14,658,008.29
  5. Step 5: Solve for x
    x = 14,658,008.29/5,481.66
  6. Step 6: Final answer
    x = 2,674.01

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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.