Home / 2,489.35-3,435.17-1,370.07

Finding the Fourth Proportional to 2,489.35, 3,435.17 and 1,370.07

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Solution

The fourth proportional to 2,489.35, 3,435.17 and 1,370.07 is: 1,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.35 : 3,435.17 = 1,370.07 : x
  2. Step 2: Convert to fraction form
    2,489.35/3,435.17 = 1,370.07/x
  3. Step 3: Cross multiply
    2,489.35x = 3,435.17 × 1,370.07
  4. Step 4: Simplify right side
    2,489.35x = 4,706,399.34
  5. Step 5: Solve for x
    x = 4,706,399.34/2,489.35
  6. Step 6: Final answer
    x = 1,890.62

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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.