Home / 3,615.21-5,418.60-1,663.29

Finding the Fourth Proportional to 3,615.21, 5,418.60 and 1,663.29

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Solution

The fourth proportional to 3,615.21, 5,418.60 and 1,663.29 is: 2,493.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.21 : 5,418.60 = 1,663.29 : x
  2. Step 2: Convert to fraction form
    3,615.21/5,418.60 = 1,663.29/x
  3. Step 3: Cross multiply
    3,615.21x = 5,418.60 × 1,663.29
  4. Step 4: Simplify right side
    3,615.21x = 9,012,703.19
  5. Step 5: Solve for x
    x = 9,012,703.19/3,615.21
  6. Step 6: Final answer
    x = 2,493.00

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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.