Home / 3,878.51-5,352.34-2,110.11

Finding the Fourth Proportional to 3,878.51, 5,352.34 and 2,110.11

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Solution

The fourth proportional to 3,878.51, 5,352.34 and 2,110.11 is: 2,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.51 : 5,352.34 = 2,110.11 : x
  2. Step 2: Convert to fraction form
    3,878.51/5,352.34 = 2,110.11/x
  3. Step 3: Cross multiply
    3,878.51x = 5,352.34 × 2,110.11
  4. Step 4: Simplify right side
    3,878.51x = 11,294,045.37
  5. Step 5: Solve for x
    x = 11,294,045.37/3,878.51
  6. Step 6: Final answer
    x = 2,911.96

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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.