Home / 7,839.63-11,758.95-3,680.55

Finding the Fourth Proportional to 7,839.63, 11,758.95 and 3,680.55

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Solution

The fourth proportional to 7,839.63, 11,758.95 and 3,680.55 is: 5,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.63 : 11,758.95 = 3,680.55 : x
  2. Step 2: Convert to fraction form
    7,839.63/11,758.95 = 3,680.55/x
  3. Step 3: Cross multiply
    7,839.63x = 11,758.95 × 3,680.55
  4. Step 4: Simplify right side
    7,839.63x = 43,279,403.42
  5. Step 5: Solve for x
    x = 43,279,403.42/7,839.63
  6. Step 6: Final answer
    x = 5,520.59

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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.