Home / 3,370.70-4,651.47-1,878.50

Finding the Fourth Proportional to 3,370.70, 4,651.47 and 1,878.50

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Solution

The fourth proportional to 3,370.70, 4,651.47 and 1,878.50 is: 2,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.70 : 4,651.47 = 1,878.50 : x
  2. Step 2: Convert to fraction form
    3,370.70/4,651.47 = 1,878.50/x
  3. Step 3: Cross multiply
    3,370.70x = 4,651.47 × 1,878.50
  4. Step 4: Simplify right side
    3,370.70x = 8,737,786.40
  5. Step 5: Solve for x
    x = 8,737,786.40/3,370.70
  6. Step 6: Final answer
    x = 2,592.28

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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.