Home / 3,890.40-5,367.45-2,377.41

Finding the Fourth Proportional to 3,890.40, 5,367.45 and 2,377.41

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Solution

The fourth proportional to 3,890.40, 5,367.45 and 2,377.41 is: 3,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.40 : 5,367.45 = 2,377.41 : x
  2. Step 2: Convert to fraction form
    3,890.40/5,367.45 = 2,377.41/x
  3. Step 3: Cross multiply
    3,890.40x = 5,367.45 × 2,377.41
  4. Step 4: Simplify right side
    3,890.40x = 12,760,629.30
  5. Step 5: Solve for x
    x = 12,760,629.30/3,890.40
  6. Step 6: Final answer
    x = 3,280.03

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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.