Home / 3,917.70-5,407.37-2,503.50

Finding the Fourth Proportional to 3,917.70, 5,407.37 and 2,503.50

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Solution

The fourth proportional to 3,917.70, 5,407.37 and 2,503.50 is: 3,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.70 : 5,407.37 = 2,503.50 : x
  2. Step 2: Convert to fraction form
    3,917.70/5,407.37 = 2,503.50/x
  3. Step 3: Cross multiply
    3,917.70x = 5,407.37 × 2,503.50
  4. Step 4: Simplify right side
    3,917.70x = 13,537,350.80
  5. Step 5: Solve for x
    x = 13,537,350.80/3,917.70
  6. Step 6: Final answer
    x = 3,455.43

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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.