Home / 3,185.55-4,395.20-1,788.27

Finding the Fourth Proportional to 3,185.55, 4,395.20 and 1,788.27

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Solution

The fourth proportional to 3,185.55, 4,395.20 and 1,788.27 is: 2,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.55 : 4,395.20 = 1,788.27 : x
  2. Step 2: Convert to fraction form
    3,185.55/4,395.20 = 1,788.27/x
  3. Step 3: Cross multiply
    3,185.55x = 4,395.20 × 1,788.27
  4. Step 4: Simplify right side
    3,185.55x = 7,859,795.36
  5. Step 5: Solve for x
    x = 7,859,795.36/3,185.55
  6. Step 6: Final answer
    x = 2,467.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.