Home / 2,760.72-4,139.64-1,029.84

Finding the Fourth Proportional to 2,760.72, 4,139.64 and 1,029.84

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Solution

The fourth proportional to 2,760.72, 4,139.64 and 1,029.84 is: 1,544.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.72 : 4,139.64 = 1,029.84 : x
  2. Step 2: Convert to fraction form
    2,760.72/4,139.64 = 1,029.84/x
  3. Step 3: Cross multiply
    2,760.72x = 4,139.64 × 1,029.84
  4. Step 4: Simplify right side
    2,760.72x = 4,263,166.86
  5. Step 5: Solve for x
    x = 4,263,166.86/2,760.72
  6. Step 6: Final answer
    x = 1,544.22

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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.