Home / 2,489.68-3,435.83-1,370.65

Finding the Fourth Proportional to 2,489.68, 3,435.83 and 1,370.65

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Solution

The fourth proportional to 2,489.68, 3,435.83 and 1,370.65 is: 1,891.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.68 : 3,435.83 = 1,370.65 : x
  2. Step 2: Convert to fraction form
    2,489.68/3,435.83 = 1,370.65/x
  3. Step 3: Cross multiply
    2,489.68x = 3,435.83 × 1,370.65
  4. Step 4: Simplify right side
    2,489.68x = 4,709,320.39
  5. Step 5: Solve for x
    x = 4,709,320.39/2,489.68
  6. Step 6: Final answer
    x = 1,891.54

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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.