Home / 2,783.03-3,840.92-1,721.50

Finding the Fourth Proportional to 2,783.03, 3,840.92 and 1,721.50

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Solution

The fourth proportional to 2,783.03, 3,840.92 and 1,721.50 is: 2,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.03 : 3,840.92 = 1,721.50 : x
  2. Step 2: Convert to fraction form
    2,783.03/3,840.92 = 1,721.50/x
  3. Step 3: Cross multiply
    2,783.03x = 3,840.92 × 1,721.50
  4. Step 4: Simplify right side
    2,783.03x = 6,612,153.63
  5. Step 5: Solve for x
    x = 6,612,153.63/2,783.03
  6. Step 6: Final answer
    x = 2,375.88

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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.