Home / 3,423.74-5,137.56-1,449.23

Finding the Fourth Proportional to 3,423.74, 5,137.56 and 1,449.23

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Solution

The fourth proportional to 3,423.74, 5,137.56 and 1,449.23 is: 2,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.74 : 5,137.56 = 1,449.23 : x
  2. Step 2: Convert to fraction form
    3,423.74/5,137.56 = 1,449.23/x
  3. Step 3: Cross multiply
    3,423.74x = 5,137.56 × 1,449.23
  4. Step 4: Simplify right side
    3,423.74x = 7,445,480.39
  5. Step 5: Solve for x
    x = 7,445,480.39/3,423.74
  6. Step 6: Final answer
    x = 2,174.67

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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.