Home / 5,405.99-8,106.21-2,481.75

Finding the Fourth Proportional to 5,405.99, 8,106.21 and 2,481.75

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Solution

The fourth proportional to 5,405.99, 8,106.21 and 2,481.75 is: 3,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.99 : 8,106.21 = 2,481.75 : x
  2. Step 2: Convert to fraction form
    5,405.99/8,106.21 = 2,481.75/x
  3. Step 3: Cross multiply
    5,405.99x = 8,106.21 × 2,481.75
  4. Step 4: Simplify right side
    5,405.99x = 20,117,586.67
  5. Step 5: Solve for x
    x = 20,117,586.67/5,405.99
  6. Step 6: Final answer
    x = 3,721.35

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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.