Home / 2,489.65-3,435.87-1,370.63

Finding the Fourth Proportional to 2,489.65, 3,435.87 and 1,370.63

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Solution

The fourth proportional to 2,489.65, 3,435.87 and 1,370.63 is: 1,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.65 : 3,435.87 = 1,370.63 : x
  2. Step 2: Convert to fraction form
    2,489.65/3,435.87 = 1,370.63/x
  3. Step 3: Cross multiply
    2,489.65x = 3,435.87 × 1,370.63
  4. Step 4: Simplify right side
    2,489.65x = 4,709,317.35
  5. Step 5: Solve for x
    x = 4,709,317.35/2,489.65
  6. Step 6: Final answer
    x = 1,891.56

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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.