Home / 3,185.62-4,395.22-1,858.53

Finding the Fourth Proportional to 3,185.62, 4,395.22 and 1,858.53

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Solution

The fourth proportional to 3,185.62, 4,395.22 and 1,858.53 is: 2,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.62 : 4,395.22 = 1,858.53 : x
  2. Step 2: Convert to fraction form
    3,185.62/4,395.22 = 1,858.53/x
  3. Step 3: Cross multiply
    3,185.62x = 4,395.22 × 1,858.53
  4. Step 4: Simplify right side
    3,185.62x = 8,168,648.23
  5. Step 5: Solve for x
    x = 8,168,648.23/3,185.62
  6. Step 6: Final answer
    x = 2,564.23

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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.