Home / 2,922.36-4,380.90-1,072.16

Finding the Fourth Proportional to 2,922.36, 4,380.90 and 1,072.16

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Solution

The fourth proportional to 2,922.36, 4,380.90 and 1,072.16 is: 1,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.36 : 4,380.90 = 1,072.16 : x
  2. Step 2: Convert to fraction form
    2,922.36/4,380.90 = 1,072.16/x
  3. Step 3: Cross multiply
    2,922.36x = 4,380.90 × 1,072.16
  4. Step 4: Simplify right side
    2,922.36x = 4,697,025.74
  5. Step 5: Solve for x
    x = 4,697,025.74/2,922.36
  6. Step 6: Final answer
    x = 1,607.27

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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.