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Finding the Fourth Proportional to 2,423.22, 3,634.71 and 779.73

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Solution

The fourth proportional to 2,423.22, 3,634.71 and 779.73 is: 1,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.22 : 3,634.71 = 779.73 : x
  2. Step 2: Convert to fraction form
    2,423.22/3,634.71 = 779.73/x
  3. Step 3: Cross multiply
    2,423.22x = 3,634.71 × 779.73
  4. Step 4: Simplify right side
    2,423.22x = 2,834,075.87
  5. Step 5: Solve for x
    x = 2,834,075.87/2,423.22
  6. Step 6: Final answer
    x = 1,169.55

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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.