Home / 3,878.18-5,352.08-2,199.66

Finding the Fourth Proportional to 3,878.18, 5,352.08 and 2,199.66

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Solution

The fourth proportional to 3,878.18, 5,352.08 and 2,199.66 is: 3,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.18 : 5,352.08 = 2,199.66 : x
  2. Step 2: Convert to fraction form
    3,878.18/5,352.08 = 2,199.66/x
  3. Step 3: Cross multiply
    3,878.18x = 5,352.08 × 2,199.66
  4. Step 4: Simplify right side
    3,878.18x = 11,772,725.22
  5. Step 5: Solve for x
    x = 11,772,725.22/3,878.18
  6. Step 6: Final answer
    x = 3,035.63

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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.