Home / 5,540.26-8,309.30-1,643.80

Finding the Fourth Proportional to 5,540.26, 8,309.30 and 1,643.80

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Solution

The fourth proportional to 5,540.26, 8,309.30 and 1,643.80 is: 2,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.26 : 8,309.30 = 1,643.80 : x
  2. Step 2: Convert to fraction form
    5,540.26/8,309.30 = 1,643.80/x
  3. Step 3: Cross multiply
    5,540.26x = 8,309.30 × 1,643.80
  4. Step 4: Simplify right side
    5,540.26x = 13,658,827.34
  5. Step 5: Solve for x
    x = 13,658,827.34/5,540.26
  6. Step 6: Final answer
    x = 2,465.38

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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.