Home / 3,890.25-5,835.35-1,116.95

Finding the Fourth Proportional to 3,890.25, 5,835.35 and 1,116.95

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Solution

The fourth proportional to 3,890.25, 5,835.35 and 1,116.95 is: 1,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.25 : 5,835.35 = 1,116.95 : x
  2. Step 2: Convert to fraction form
    3,890.25/5,835.35 = 1,116.95/x
  3. Step 3: Cross multiply
    3,890.25x = 5,835.35 × 1,116.95
  4. Step 4: Simplify right side
    3,890.25x = 6,517,767.80
  5. Step 5: Solve for x
    x = 6,517,767.80/3,890.25
  6. Step 6: Final answer
    x = 1,675.41

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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.