Home / 2,719.20-4,076.78-1,157.93

Finding the Fourth Proportional to 2,719.20, 4,076.78 and 1,157.93

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Solution

The fourth proportional to 2,719.20, 4,076.78 and 1,157.93 is: 1,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.20 : 4,076.78 = 1,157.93 : x
  2. Step 2: Convert to fraction form
    2,719.20/4,076.78 = 1,157.93/x
  3. Step 3: Cross multiply
    2,719.20x = 4,076.78 × 1,157.93
  4. Step 4: Simplify right side
    2,719.20x = 4,720,599.69
  5. Step 5: Solve for x
    x = 4,720,599.69/2,719.20
  6. Step 6: Final answer
    x = 1,736.03

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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.