Home / 2,558.82-3,531.26-1,999.10

Finding the Fourth Proportional to 2,558.82, 3,531.26 and 1,999.10

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Solution

The fourth proportional to 2,558.82, 3,531.26 and 1,999.10 is: 2,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.82 : 3,531.26 = 1,999.10 : x
  2. Step 2: Convert to fraction form
    2,558.82/3,531.26 = 1,999.10/x
  3. Step 3: Cross multiply
    2,558.82x = 3,531.26 × 1,999.10
  4. Step 4: Simplify right side
    2,558.82x = 7,059,341.87
  5. Step 5: Solve for x
    x = 7,059,341.87/2,558.82
  6. Step 6: Final answer
    x = 2,758.83

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1.5x scale

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.