Home / 2,558.39-3,531.70-1,971.54

Finding the Fourth Proportional to 2,558.39, 3,531.70 and 1,971.54

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Solution

The fourth proportional to 2,558.39, 3,531.70 and 1,971.54 is: 2,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.39 : 3,531.70 = 1,971.54 : x
  2. Step 2: Convert to fraction form
    2,558.39/3,531.70 = 1,971.54/x
  3. Step 3: Cross multiply
    2,558.39x = 3,531.70 × 1,971.54
  4. Step 4: Simplify right side
    2,558.39x = 6,962,890.28
  5. Step 5: Solve for x
    x = 6,962,890.28/2,558.39
  6. Step 6: Final answer
    x = 2,721.60

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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.