Home / 3,878.90-5,352.82-2,366.11

Finding the Fourth Proportional to 3,878.90, 5,352.82 and 2,366.11

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Solution

The fourth proportional to 3,878.90, 5,352.82 and 2,366.11 is: 3,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.90 : 5,352.82 = 2,366.11 : x
  2. Step 2: Convert to fraction form
    3,878.90/5,352.82 = 2,366.11/x
  3. Step 3: Cross multiply
    3,878.90x = 5,352.82 × 2,366.11
  4. Step 4: Simplify right side
    3,878.90x = 12,665,361.71
  5. Step 5: Solve for x
    x = 12,665,361.71/3,878.90
  6. Step 6: Final answer
    x = 3,265.20

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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.