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Finding the Fourth Proportional to 3,556.99, 5,336.16 and 1,609.20

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Solution

The fourth proportional to 3,556.99, 5,336.16 and 1,609.20 is: 2,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.99 : 5,336.16 = 1,609.20 : x
  2. Step 2: Convert to fraction form
    3,556.99/5,336.16 = 1,609.20/x
  3. Step 3: Cross multiply
    3,556.99x = 5,336.16 × 1,609.20
  4. Step 4: Simplify right side
    3,556.99x = 8,586,948.67
  5. Step 5: Solve for x
    x = 8,586,948.67/3,556.99
  6. Step 6: Final answer
    x = 2,414.11

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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.