Home / 3,712.44-5,123.61-2,140.50

Finding the Fourth Proportional to 3,712.44, 5,123.61 and 2,140.50

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Solution

The fourth proportional to 3,712.44, 5,123.61 and 2,140.50 is: 2,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.44 : 5,123.61 = 2,140.50 : x
  2. Step 2: Convert to fraction form
    3,712.44/5,123.61 = 2,140.50/x
  3. Step 3: Cross multiply
    3,712.44x = 5,123.61 × 2,140.50
  4. Step 4: Simplify right side
    3,712.44x = 10,967,087.21
  5. Step 5: Solve for x
    x = 10,967,087.21/3,712.44
  6. Step 6: Final answer
    x = 2,954.15

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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.