Home / 2,815.94-4,220.24-2,038.56

Finding the Fourth Proportional to 2,815.94, 4,220.24 and 2,038.56

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Solution

The fourth proportional to 2,815.94, 4,220.24 and 2,038.56 is: 3,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.94 : 4,220.24 = 2,038.56 : x
  2. Step 2: Convert to fraction form
    2,815.94/4,220.24 = 2,038.56/x
  3. Step 3: Cross multiply
    2,815.94x = 4,220.24 × 2,038.56
  4. Step 4: Simplify right side
    2,815.94x = 8,603,212.45
  5. Step 5: Solve for x
    x = 8,603,212.45/2,815.94
  6. Step 6: Final answer
    x = 3,055.18

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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.