Home / 4,115.81-5,677.80-2,789.93

Finding the Fourth Proportional to 4,115.81, 5,677.80 and 2,789.93

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Solution

The fourth proportional to 4,115.81, 5,677.80 and 2,789.93 is: 3,848.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.81 : 5,677.80 = 2,789.93 : x
  2. Step 2: Convert to fraction form
    4,115.81/5,677.80 = 2,789.93/x
  3. Step 3: Cross multiply
    4,115.81x = 5,677.80 × 2,789.93
  4. Step 4: Simplify right side
    4,115.81x = 15,840,668.29
  5. Step 5: Solve for x
    x = 15,840,668.29/4,115.81
  6. Step 6: Final answer
    x = 3,848.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.