Home / 3,859.45-5,787.96-2,216.77

Finding the Fourth Proportional to 3,859.45, 5,787.96 and 2,216.77

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Solution

The fourth proportional to 3,859.45, 5,787.96 and 2,216.77 is: 3,324.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.45 : 5,787.96 = 2,216.77 : x
  2. Step 2: Convert to fraction form
    3,859.45/5,787.96 = 2,216.77/x
  3. Step 3: Cross multiply
    3,859.45x = 5,787.96 × 2,216.77
  4. Step 4: Simplify right side
    3,859.45x = 12,830,576.09
  5. Step 5: Solve for x
    x = 12,830,576.09/3,859.45
  6. Step 6: Final answer
    x = 3,324.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.