Home / 2,615.28-3,609.09-1,436.43

Finding the Fourth Proportional to 2,615.28, 3,609.09 and 1,436.43

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Solution

The fourth proportional to 2,615.28, 3,609.09 and 1,436.43 is: 1,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.28 : 3,609.09 = 1,436.43 : x
  2. Step 2: Convert to fraction form
    2,615.28/3,609.09 = 1,436.43/x
  3. Step 3: Cross multiply
    2,615.28x = 3,609.09 × 1,436.43
  4. Step 4: Simplify right side
    2,615.28x = 5,184,205.15
  5. Step 5: Solve for x
    x = 5,184,205.15/2,615.28
  6. Step 6: Final answer
    x = 1,982.28

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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.