Home / 2,489.16-3,435.06-1,370.12

Finding the Fourth Proportional to 2,489.16, 3,435.06 and 1,370.12

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Solution

The fourth proportional to 2,489.16, 3,435.06 and 1,370.12 is: 1,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.16 : 3,435.06 = 1,370.12 : x
  2. Step 2: Convert to fraction form
    2,489.16/3,435.06 = 1,370.12/x
  3. Step 3: Cross multiply
    2,489.16x = 3,435.06 × 1,370.12
  4. Step 4: Simplify right side
    2,489.16x = 4,706,444.41
  5. Step 5: Solve for x
    x = 4,706,444.41/2,489.16
  6. Step 6: Final answer
    x = 1,890.78

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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.