Home / 3,365.78-5,050.80-1,286.01

Finding the Fourth Proportional to 3,365.78, 5,050.80 and 1,286.01

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Solution

The fourth proportional to 3,365.78, 5,050.80 and 1,286.01 is: 1,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.78 : 5,050.80 = 1,286.01 : x
  2. Step 2: Convert to fraction form
    3,365.78/5,050.80 = 1,286.01/x
  3. Step 3: Cross multiply
    3,365.78x = 5,050.80 × 1,286.01
  4. Step 4: Simplify right side
    3,365.78x = 6,495,379.31
  5. Step 5: Solve for x
    x = 6,495,379.31/3,365.78
  6. Step 6: Final answer
    x = 1,929.83

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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.