Home / 3,643.44-5,456.92-2,987.32

Finding the Fourth Proportional to 3,643.44, 5,456.92 and 2,987.32

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Solution

The fourth proportional to 3,643.44, 5,456.92 and 2,987.32 is: 4,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.44 : 5,456.92 = 2,987.32 : x
  2. Step 2: Convert to fraction form
    3,643.44/5,456.92 = 2,987.32/x
  3. Step 3: Cross multiply
    3,643.44x = 5,456.92 × 2,987.32
  4. Step 4: Simplify right side
    3,643.44x = 16,301,566.25
  5. Step 5: Solve for x
    x = 16,301,566.25/3,643.44
  6. Step 6: Final answer
    x = 4,474.22

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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.