Home / 5,103.55-7,653.80-1,815.89

Finding the Fourth Proportional to 5,103.55, 7,653.80 and 1,815.89

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Solution

The fourth proportional to 5,103.55, 7,653.80 and 1,815.89 is: 2,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.55 : 7,653.80 = 1,815.89 : x
  2. Step 2: Convert to fraction form
    5,103.55/7,653.80 = 1,815.89/x
  3. Step 3: Cross multiply
    5,103.55x = 7,653.80 × 1,815.89
  4. Step 4: Simplify right side
    5,103.55x = 13,898,458.88
  5. Step 5: Solve for x
    x = 13,898,458.88/5,103.55
  6. Step 6: Final answer
    x = 2,723.29

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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.