Home / 3,405.96-5,109.66-1,099.08

Finding the Fourth Proportional to 3,405.96, 5,109.66 and 1,099.08

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Solution

The fourth proportional to 3,405.96, 5,109.66 and 1,099.08 is: 1,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.96 : 5,109.66 = 1,099.08 : x
  2. Step 2: Convert to fraction form
    3,405.96/5,109.66 = 1,099.08/x
  3. Step 3: Cross multiply
    3,405.96x = 5,109.66 × 1,099.08
  4. Step 4: Simplify right side
    3,405.96x = 5,615,925.11
  5. Step 5: Solve for x
    x = 5,615,925.11/3,405.96
  6. Step 6: Final answer
    x = 1,648.85

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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.