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Finding the Fourth Proportional to 2,069.30, 3,103.95 and 609.48

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Solution

The fourth proportional to 2,069.30, 3,103.95 and 609.48 is: 914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.30 : 3,103.95 = 609.48 : x
  2. Step 2: Convert to fraction form
    2,069.30/3,103.95 = 609.48/x
  3. Step 3: Cross multiply
    2,069.30x = 3,103.95 × 609.48
  4. Step 4: Simplify right side
    2,069.30x = 1,891,795.45
  5. Step 5: Solve for x
    x = 1,891,795.45/2,069.30
  6. Step 6: Final answer
    x = 914.22

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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.