Home / 3,890.35-5,835.42-1,116.96

Finding the Fourth Proportional to 3,890.35, 5,835.42 and 1,116.96

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Solution

The fourth proportional to 3,890.35, 5,835.42 and 1,116.96 is: 1,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.35 : 5,835.42 = 1,116.96 : x
  2. Step 2: Convert to fraction form
    3,890.35/5,835.42 = 1,116.96/x
  3. Step 3: Cross multiply
    3,890.35x = 5,835.42 × 1,116.96
  4. Step 4: Simplify right side
    3,890.35x = 6,517,954.94
  5. Step 5: Solve for x
    x = 6,517,954.94/3,890.35
  6. Step 6: Final answer
    x = 1,675.41

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1.5x scale

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.