Home / 3,878.50-5,352.26-2,110.08

Finding the Fourth Proportional to 3,878.50, 5,352.26 and 2,110.08

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Solution

The fourth proportional to 3,878.50, 5,352.26 and 2,110.08 is: 2,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.50 : 5,352.26 = 2,110.08 : x
  2. Step 2: Convert to fraction form
    3,878.50/5,352.26 = 2,110.08/x
  3. Step 3: Cross multiply
    3,878.50x = 5,352.26 × 2,110.08
  4. Step 4: Simplify right side
    3,878.50x = 11,293,696.78
  5. Step 5: Solve for x
    x = 11,293,696.78/3,878.50
  6. Step 6: Final answer
    x = 2,911.87

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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.