Home / 2,405.39-3,609.23-1,090.07

Finding the Fourth Proportional to 2,405.39, 3,609.23 and 1,090.07

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Solution

The fourth proportional to 2,405.39, 3,609.23 and 1,090.07 is: 1,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.39 : 3,609.23 = 1,090.07 : x
  2. Step 2: Convert to fraction form
    2,405.39/3,609.23 = 1,090.07/x
  3. Step 3: Cross multiply
    2,405.39x = 3,609.23 × 1,090.07
  4. Step 4: Simplify right side
    2,405.39x = 3,934,289.85
  5. Step 5: Solve for x
    x = 3,934,289.85/2,405.39
  6. Step 6: Final answer
    x = 1,635.62

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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.