Home / 1,922.93-2,880.60-999.09

Finding the Fourth Proportional to 1,922.93, 2,880.60 and 999.09

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Solution

The fourth proportional to 1,922.93, 2,880.60 and 999.09 is: 1,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.93 : 2,880.60 = 999.09 : x
  2. Step 2: Convert to fraction form
    1,922.93/2,880.60 = 999.09/x
  3. Step 3: Cross multiply
    1,922.93x = 2,880.60 × 999.09
  4. Step 4: Simplify right side
    1,922.93x = 2,877,978.65
  5. Step 5: Solve for x
    x = 2,877,978.65/1,922.93
  6. Step 6: Final answer
    x = 1,496.66

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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.