Home / 3,815.58-5,723.47-1,218.52

Finding the Fourth Proportional to 3,815.58, 5,723.47 and 1,218.52

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Solution

The fourth proportional to 3,815.58, 5,723.47 and 1,218.52 is: 1,827.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.58 : 5,723.47 = 1,218.52 : x
  2. Step 2: Convert to fraction form
    3,815.58/5,723.47 = 1,218.52/x
  3. Step 3: Cross multiply
    3,815.58x = 5,723.47 × 1,218.52
  4. Step 4: Simplify right side
    3,815.58x = 6,974,171.34
  5. Step 5: Solve for x
    x = 6,974,171.34/3,815.58
  6. Step 6: Final answer
    x = 1,827.81

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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.