Home / 3,462.63-4,778.46-1,890.78

Finding the Fourth Proportional to 3,462.63, 4,778.46 and 1,890.78

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Solution

The fourth proportional to 3,462.63, 4,778.46 and 1,890.78 is: 2,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.63 : 4,778.46 = 1,890.78 : x
  2. Step 2: Convert to fraction form
    3,462.63/4,778.46 = 1,890.78/x
  3. Step 3: Cross multiply
    3,462.63x = 4,778.46 × 1,890.78
  4. Step 4: Simplify right side
    3,462.63x = 9,035,016.60
  5. Step 5: Solve for x
    x = 9,035,016.60/3,462.63
  6. Step 6: Final answer
    x = 2,609.29

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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.