Home / 2,722.12-3,749.86-1,973.88

Finding the Fourth Proportional to 2,722.12, 3,749.86 and 1,973.88

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Solution

The fourth proportional to 2,722.12, 3,749.86 and 1,973.88 is: 2,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.12 : 3,749.86 = 1,973.88 : x
  2. Step 2: Convert to fraction form
    2,722.12/3,749.86 = 1,973.88/x
  3. Step 3: Cross multiply
    2,722.12x = 3,749.86 × 1,973.88
  4. Step 4: Simplify right side
    2,722.12x = 7,401,773.66
  5. Step 5: Solve for x
    x = 7,401,773.66/2,722.12
  6. Step 6: Final answer
    x = 2,719.12

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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.