Home / 2,051.22-3,076.21-752.79

Finding the Fourth Proportional to 2,051.22, 3,076.21 and 752.79

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Solution

The fourth proportional to 2,051.22, 3,076.21 and 752.79 is: 1,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.22 : 3,076.21 = 752.79 : x
  2. Step 2: Convert to fraction form
    2,051.22/3,076.21 = 752.79/x
  3. Step 3: Cross multiply
    2,051.22x = 3,076.21 × 752.79
  4. Step 4: Simplify right side
    2,051.22x = 2,315,740.13
  5. Step 5: Solve for x
    x = 2,315,740.13/2,051.22
  6. Step 6: Final answer
    x = 1,128.96

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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.