Home / 3,819.12-5,729.57-1,186.49

Finding the Fourth Proportional to 3,819.12, 5,729.57 and 1,186.49

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Solution

The fourth proportional to 3,819.12, 5,729.57 and 1,186.49 is: 1,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.12 : 5,729.57 = 1,186.49 : x
  2. Step 2: Convert to fraction form
    3,819.12/5,729.57 = 1,186.49/x
  3. Step 3: Cross multiply
    3,819.12x = 5,729.57 × 1,186.49
  4. Step 4: Simplify right side
    3,819.12x = 6,798,051.83
  5. Step 5: Solve for x
    x = 6,798,051.83/3,819.12
  6. Step 6: Final answer
    x = 1,780.00

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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.