Home / 3,377.68-5,063.56-1,431.28

Finding the Fourth Proportional to 3,377.68, 5,063.56 and 1,431.28

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Solution

The fourth proportional to 3,377.68, 5,063.56 and 1,431.28 is: 2,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.68 : 5,063.56 = 1,431.28 : x
  2. Step 2: Convert to fraction form
    3,377.68/5,063.56 = 1,431.28/x
  3. Step 3: Cross multiply
    3,377.68x = 5,063.56 × 1,431.28
  4. Step 4: Simplify right side
    3,377.68x = 7,247,372.16
  5. Step 5: Solve for x
    x = 7,247,372.16/3,377.68
  6. Step 6: Final answer
    x = 2,145.67

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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.