Home / 2,638.24-3,642.60-1,755.88

Finding the Fourth Proportional to 2,638.24, 3,642.60 and 1,755.88

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Solution

The fourth proportional to 2,638.24, 3,642.60 and 1,755.88 is: 2,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.24 : 3,642.60 = 1,755.88 : x
  2. Step 2: Convert to fraction form
    2,638.24/3,642.60 = 1,755.88/x
  3. Step 3: Cross multiply
    2,638.24x = 3,642.60 × 1,755.88
  4. Step 4: Simplify right side
    2,638.24x = 6,395,968.49
  5. Step 5: Solve for x
    x = 6,395,968.49/2,638.24
  6. Step 6: Final answer
    x = 2,424.33

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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.