Home / 1,962.07-2,706.69-1,821.36

Finding the Fourth Proportional to 1,962.07, 2,706.69 and 1,821.36

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Solution

The fourth proportional to 1,962.07, 2,706.69 and 1,821.36 is: 2,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.07 : 2,706.69 = 1,821.36 : x
  2. Step 2: Convert to fraction form
    1,962.07/2,706.69 = 1,821.36/x
  3. Step 3: Cross multiply
    1,962.07x = 2,706.69 × 1,821.36
  4. Step 4: Simplify right side
    1,962.07x = 4,929,861.14
  5. Step 5: Solve for x
    x = 4,929,861.14/1,962.07
  6. Step 6: Final answer
    x = 2,512.58

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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.