Home / 3,109.80-4,662.40-1,465.42

Finding the Fourth Proportional to 3,109.80, 4,662.40 and 1,465.42

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Solution

The fourth proportional to 3,109.80, 4,662.40 and 1,465.42 is: 2,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.80 : 4,662.40 = 1,465.42 : x
  2. Step 2: Convert to fraction form
    3,109.80/4,662.40 = 1,465.42/x
  3. Step 3: Cross multiply
    3,109.80x = 4,662.40 × 1,465.42
  4. Step 4: Simplify right side
    3,109.80x = 6,832,374.21
  5. Step 5: Solve for x
    x = 6,832,374.21/3,109.80
  6. Step 6: Final answer
    x = 2,197.05

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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.