Home / 2,489.59-3,435.71-1,370.60

Finding the Fourth Proportional to 2,489.59, 3,435.71 and 1,370.60

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Solution

The fourth proportional to 2,489.59, 3,435.71 and 1,370.60 is: 1,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.59 : 3,435.71 = 1,370.60 : x
  2. Step 2: Convert to fraction form
    2,489.59/3,435.71 = 1,370.60/x
  3. Step 3: Cross multiply
    2,489.59x = 3,435.71 × 1,370.60
  4. Step 4: Simplify right side
    2,489.59x = 4,708,984.13
  5. Step 5: Solve for x
    x = 4,708,984.13/2,489.59
  6. Step 6: Final answer
    x = 1,891.47

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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.