Home / 2,550.86-3,519.95-1,431.84

Finding the Fourth Proportional to 2,550.86, 3,519.95 and 1,431.84

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Solution

The fourth proportional to 2,550.86, 3,519.95 and 1,431.84 is: 1,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.86 : 3,519.95 = 1,431.84 : x
  2. Step 2: Convert to fraction form
    2,550.86/3,519.95 = 1,431.84/x
  3. Step 3: Cross multiply
    2,550.86x = 3,519.95 × 1,431.84
  4. Step 4: Simplify right side
    2,550.86x = 5,039,998.05
  5. Step 5: Solve for x
    x = 5,039,998.05/2,550.86
  6. Step 6: Final answer
    x = 1,975.81

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1.5x scale

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.