Home / 5,290.36-7,936.80-1,827.64

Finding the Fourth Proportional to 5,290.36, 7,936.80 and 1,827.64

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Solution

The fourth proportional to 5,290.36, 7,936.80 and 1,827.64 is: 2,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.36 : 7,936.80 = 1,827.64 : x
  2. Step 2: Convert to fraction form
    5,290.36/7,936.80 = 1,827.64/x
  3. Step 3: Cross multiply
    5,290.36x = 7,936.80 × 1,827.64
  4. Step 4: Simplify right side
    5,290.36x = 14,505,613.15
  5. Step 5: Solve for x
    x = 14,505,613.15/5,290.36
  6. Step 6: Final answer
    x = 2,741.90

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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.