Home / 5,918.57-8,865.75-3,690.09

Finding the Fourth Proportional to 5,918.57, 8,865.75 and 3,690.09

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Solution

The fourth proportional to 5,918.57, 8,865.75 and 3,690.09 is: 5,527.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.57 : 8,865.75 = 3,690.09 : x
  2. Step 2: Convert to fraction form
    5,918.57/8,865.75 = 3,690.09/x
  3. Step 3: Cross multiply
    5,918.57x = 8,865.75 × 3,690.09
  4. Step 4: Simplify right side
    5,918.57x = 32,715,415.42
  5. Step 5: Solve for x
    x = 32,715,415.42/5,918.57
  6. Step 6: Final answer
    x = 5,527.59

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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.