Home / 5,481.18-8,220.08-3,607

Finding the Fourth Proportional to 5,481.18, 8,220.08 and 3,607

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Solution

The fourth proportional to 5,481.18, 8,220.08 and 3,607 is: 5,409.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.18 : 8,220.08 = 3,607 : x
  2. Step 2: Convert to fraction form
    5,481.18/8,220.08 = 3,607/x
  3. Step 3: Cross multiply
    5,481.18x = 8,220.08 × 3,607
  4. Step 4: Simplify right side
    5,481.18x = 29,649,828.56
  5. Step 5: Solve for x
    x = 29,649,828.56/5,481.18
  6. Step 6: Final answer
    x = 5,409.39

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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.