Home / 2,489.38-3,435.40-1,370.35

Finding the Fourth Proportional to 2,489.38, 3,435.40 and 1,370.35

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Solution

The fourth proportional to 2,489.38, 3,435.40 and 1,370.35 is: 1,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.38 : 3,435.40 = 1,370.35 : x
  2. Step 2: Convert to fraction form
    2,489.38/3,435.40 = 1,370.35/x
  3. Step 3: Cross multiply
    2,489.38x = 3,435.40 × 1,370.35
  4. Step 4: Simplify right side
    2,489.38x = 4,707,706.40
  5. Step 5: Solve for x
    x = 4,707,706.40/2,489.38
  6. Step 6: Final answer
    x = 1,891.12

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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.