Home / 1,958.10-2,702.32-1,293.80

Finding the Fourth Proportional to 1,958.10, 2,702.32 and 1,293.80

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Solution

The fourth proportional to 1,958.10, 2,702.32 and 1,293.80 is: 1,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.10 : 2,702.32 = 1,293.80 : x
  2. Step 2: Convert to fraction form
    1,958.10/2,702.32 = 1,293.80/x
  3. Step 3: Cross multiply
    1,958.10x = 2,702.32 × 1,293.80
  4. Step 4: Simplify right side
    1,958.10x = 3,496,261.62
  5. Step 5: Solve for x
    x = 3,496,261.62/1,958.10
  6. Step 6: Final answer
    x = 1,785.54

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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.