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Finding the Fourth Proportional to 1,829.89, 2,744.88 and 905.50

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Solution

The fourth proportional to 1,829.89, 2,744.88 and 905.50 is: 1,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.89 : 2,744.88 = 905.50 : x
  2. Step 2: Convert to fraction form
    1,829.89/2,744.88 = 905.50/x
  3. Step 3: Cross multiply
    1,829.89x = 2,744.88 × 905.50
  4. Step 4: Simplify right side
    1,829.89x = 2,485,488.84
  5. Step 5: Solve for x
    x = 2,485,488.84/1,829.89
  6. Step 6: Final answer
    x = 1,358.27

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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.