Home / 1,823.36-2,515.44-1,192.78

Finding the Fourth Proportional to 1,823.36, 2,515.44 and 1,192.78

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Solution

The fourth proportional to 1,823.36, 2,515.44 and 1,192.78 is: 1,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.36 : 2,515.44 = 1,192.78 : x
  2. Step 2: Convert to fraction form
    1,823.36/2,515.44 = 1,192.78/x
  3. Step 3: Cross multiply
    1,823.36x = 2,515.44 × 1,192.78
  4. Step 4: Simplify right side
    1,823.36x = 3,000,375.79
  5. Step 5: Solve for x
    x = 3,000,375.79/1,823.36
  6. Step 6: Final answer
    x = 1,645.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.