Home / 4,555.80-6,286.88-2,787.40

Finding the Fourth Proportional to 4,555.80, 6,286.88 and 2,787.40

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Solution

The fourth proportional to 4,555.80, 6,286.88 and 2,787.40 is: 3,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,555.80 : 6,286.88 = 2,787.40 : x
  2. Step 2: Convert to fraction form
    4,555.80/6,286.88 = 2,787.40/x
  3. Step 3: Cross multiply
    4,555.80x = 6,286.88 × 2,787.40
  4. Step 4: Simplify right side
    4,555.80x = 17,524,049.31
  5. Step 5: Solve for x
    x = 17,524,049.31/4,555.80
  6. Step 6: Final answer
    x = 3,846.54

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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.