Home / 3,686.44-5,531.82-2,645.32

Finding the Fourth Proportional to 3,686.44, 5,531.82 and 2,645.32

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Solution

The fourth proportional to 3,686.44, 5,531.82 and 2,645.32 is: 3,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.44 : 5,531.82 = 2,645.32 : x
  2. Step 2: Convert to fraction form
    3,686.44/5,531.82 = 2,645.32/x
  3. Step 3: Cross multiply
    3,686.44x = 5,531.82 × 2,645.32
  4. Step 4: Simplify right side
    3,686.44x = 14,633,434.08
  5. Step 5: Solve for x
    x = 14,633,434.08/3,686.44
  6. Step 6: Final answer
    x = 3,969.53

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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.