Home / 3,465.48-5,190.69-2,149.56

Finding the Fourth Proportional to 3,465.48, 5,190.69 and 2,149.56

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Solution

The fourth proportional to 3,465.48, 5,190.69 and 2,149.56 is: 3,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.48 : 5,190.69 = 2,149.56 : x
  2. Step 2: Convert to fraction form
    3,465.48/5,190.69 = 2,149.56/x
  3. Step 3: Cross multiply
    3,465.48x = 5,190.69 × 2,149.56
  4. Step 4: Simplify right side
    3,465.48x = 11,157,707.66
  5. Step 5: Solve for x
    x = 11,157,707.66/3,465.48
  6. Step 6: Final answer
    x = 3,219.67

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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.