Home / 3,878.63-5,352.46-2,110.24

Finding the Fourth Proportional to 3,878.63, 5,352.46 and 2,110.24

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Solution

The fourth proportional to 3,878.63, 5,352.46 and 2,110.24 is: 2,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.63 : 5,352.46 = 2,110.24 : x
  2. Step 2: Convert to fraction form
    3,878.63/5,352.46 = 2,110.24/x
  3. Step 3: Cross multiply
    3,878.63x = 5,352.46 × 2,110.24
  4. Step 4: Simplify right side
    3,878.63x = 11,294,975.19
  5. Step 5: Solve for x
    x = 11,294,975.19/3,878.63
  6. Step 6: Final answer
    x = 2,912.10

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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.