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Finding the Fourth Proportional to 2,235.04, 3,351.78 and 773.80

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Solution

The fourth proportional to 2,235.04, 3,351.78 and 773.80 is: 1,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.04 : 3,351.78 = 773.80 : x
  2. Step 2: Convert to fraction form
    2,235.04/3,351.78 = 773.80/x
  3. Step 3: Cross multiply
    2,235.04x = 3,351.78 × 773.80
  4. Step 4: Simplify right side
    2,235.04x = 2,593,607.36
  5. Step 5: Solve for x
    x = 2,593,607.36/2,235.04
  6. Step 6: Final answer
    x = 1,160.43

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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.