Home / 3,448.86-5,172.78-1,108.55

Finding the Fourth Proportional to 3,448.86, 5,172.78 and 1,108.55

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Solution

The fourth proportional to 3,448.86, 5,172.78 and 1,108.55 is: 1,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.86 : 5,172.78 = 1,108.55 : x
  2. Step 2: Convert to fraction form
    3,448.86/5,172.78 = 1,108.55/x
  3. Step 3: Cross multiply
    3,448.86x = 5,172.78 × 1,108.55
  4. Step 4: Simplify right side
    3,448.86x = 5,734,302.36
  5. Step 5: Solve for x
    x = 5,734,302.36/3,448.86
  6. Step 6: Final answer
    x = 1,662.67

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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.