Home / 3,615.75-5,419.53-1,663.92

Finding the Fourth Proportional to 3,615.75, 5,419.53 and 1,663.92

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Solution

The fourth proportional to 3,615.75, 5,419.53 and 1,663.92 is: 2,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.75 : 5,419.53 = 1,663.92 : x
  2. Step 2: Convert to fraction form
    3,615.75/5,419.53 = 1,663.92/x
  3. Step 3: Cross multiply
    3,615.75x = 5,419.53 × 1,663.92
  4. Step 4: Simplify right side
    3,615.75x = 9,017,664.36
  5. Step 5: Solve for x
    x = 9,017,664.36/3,615.75
  6. Step 6: Final answer
    x = 2,494.00

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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.