Home / 2,821.74-4,232.97-1,090.50

Finding the Fourth Proportional to 2,821.74, 4,232.97 and 1,090.50

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Solution

The fourth proportional to 2,821.74, 4,232.97 and 1,090.50 is: 1,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.74 : 4,232.97 = 1,090.50 : x
  2. Step 2: Convert to fraction form
    2,821.74/4,232.97 = 1,090.50/x
  3. Step 3: Cross multiply
    2,821.74x = 4,232.97 × 1,090.50
  4. Step 4: Simplify right side
    2,821.74x = 4,616,053.79
  5. Step 5: Solve for x
    x = 4,616,053.79/2,821.74
  6. Step 6: Final answer
    x = 1,635.89

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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.