Home / 4,745.55-7,118.32-1,282.80

Finding the Fourth Proportional to 4,745.55, 7,118.32 and 1,282.80

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Solution

The fourth proportional to 4,745.55, 7,118.32 and 1,282.80 is: 1,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.55 : 7,118.32 = 1,282.80 : x
  2. Step 2: Convert to fraction form
    4,745.55/7,118.32 = 1,282.80/x
  3. Step 3: Cross multiply
    4,745.55x = 7,118.32 × 1,282.80
  4. Step 4: Simplify right side
    4,745.55x = 9,131,395.48
  5. Step 5: Solve for x
    x = 9,131,395.48/4,745.55
  6. Step 6: Final answer
    x = 1,924.20

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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.