Home / 3,709.40-5,556.90-3,450.20

Finding the Fourth Proportional to 3,709.40, 5,556.90 and 3,450.20

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Solution

The fourth proportional to 3,709.40, 5,556.90 and 3,450.20 is: 5,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.40 : 5,556.90 = 3,450.20 : x
  2. Step 2: Convert to fraction form
    3,709.40/5,556.90 = 3,450.20/x
  3. Step 3: Cross multiply
    3,709.40x = 5,556.90 × 3,450.20
  4. Step 4: Simplify right side
    3,709.40x = 19,172,416.38
  5. Step 5: Solve for x
    x = 19,172,416.38/3,709.40
  6. Step 6: Final answer
    x = 5,168.60

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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.