Home / 3,477.82-5,217.70-1,399.30

Finding the Fourth Proportional to 3,477.82, 5,217.70 and 1,399.30

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Solution

The fourth proportional to 3,477.82, 5,217.70 and 1,399.30 is: 2,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.82 : 5,217.70 = 1,399.30 : x
  2. Step 2: Convert to fraction form
    3,477.82/5,217.70 = 1,399.30/x
  3. Step 3: Cross multiply
    3,477.82x = 5,217.70 × 1,399.30
  4. Step 4: Simplify right side
    3,477.82x = 7,301,134.27
  5. Step 5: Solve for x
    x = 7,301,134.27/3,477.82
  6. Step 6: Final answer
    x = 2,099.34

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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.