Home / 3,973.56-5,955.96-2,120.07

Finding the Fourth Proportional to 3,973.56, 5,955.96 and 2,120.07

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Solution

The fourth proportional to 3,973.56, 5,955.96 and 2,120.07 is: 3,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.56 : 5,955.96 = 2,120.07 : x
  2. Step 2: Convert to fraction form
    3,973.56/5,955.96 = 2,120.07/x
  3. Step 3: Cross multiply
    3,973.56x = 5,955.96 × 2,120.07
  4. Step 4: Simplify right side
    3,973.56x = 12,627,082.40
  5. Step 5: Solve for x
    x = 12,627,082.40/3,973.56
  6. Step 6: Final answer
    x = 3,177.78

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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.