Home / 2,550.49-3,519.61-1,431.70

Finding the Fourth Proportional to 2,550.49, 3,519.61 and 1,431.70

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Solution

The fourth proportional to 2,550.49, 3,519.61 and 1,431.70 is: 1,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.49 : 3,519.61 = 1,431.70 : x
  2. Step 2: Convert to fraction form
    2,550.49/3,519.61 = 1,431.70/x
  3. Step 3: Cross multiply
    2,550.49x = 3,519.61 × 1,431.70
  4. Step 4: Simplify right side
    2,550.49x = 5,039,013.26
  5. Step 5: Solve for x
    x = 5,039,013.26/2,550.49
  6. Step 6: Final answer
    x = 1,975.71

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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.