Home / 2,515.19-3,787.84-2,290.73

Finding the Fourth Proportional to 2,515.19, 3,787.84 and 2,290.73

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Solution

The fourth proportional to 2,515.19, 3,787.84 and 2,290.73 is: 3,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.19 : 3,787.84 = 2,290.73 : x
  2. Step 2: Convert to fraction form
    2,515.19/3,787.84 = 2,290.73/x
  3. Step 3: Cross multiply
    2,515.19x = 3,787.84 × 2,290.73
  4. Step 4: Simplify right side
    2,515.19x = 8,676,914.29
  5. Step 5: Solve for x
    x = 8,676,914.29/2,515.19
  6. Step 6: Final answer
    x = 3,449.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.