Home / 2,787.09-4,180.92-1,055.71

Finding the Fourth Proportional to 2,787.09, 4,180.92 and 1,055.71

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Solution

The fourth proportional to 2,787.09, 4,180.92 and 1,055.71 is: 1,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.09 : 4,180.92 = 1,055.71 : x
  2. Step 2: Convert to fraction form
    2,787.09/4,180.92 = 1,055.71/x
  3. Step 3: Cross multiply
    2,787.09x = 4,180.92 × 1,055.71
  4. Step 4: Simplify right side
    2,787.09x = 4,413,839.05
  5. Step 5: Solve for x
    x = 4,413,839.05/2,787.09
  6. Step 6: Final answer
    x = 1,583.67

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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.