Home / 2,756.86-4,135.97-1,370.85

Finding the Fourth Proportional to 2,756.86, 4,135.97 and 1,370.85

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Solution

The fourth proportional to 2,756.86, 4,135.97 and 1,370.85 is: 2,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.86 : 4,135.97 = 1,370.85 : x
  2. Step 2: Convert to fraction form
    2,756.86/4,135.97 = 1,370.85/x
  3. Step 3: Cross multiply
    2,756.86x = 4,135.97 × 1,370.85
  4. Step 4: Simplify right side
    2,756.86x = 5,669,803.10
  5. Step 5: Solve for x
    x = 5,669,803.10/2,756.86
  6. Step 6: Final answer
    x = 2,056.62

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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.