Home / 1,958.81-2,702.61-1,260.59

Finding the Fourth Proportional to 1,958.81, 2,702.61 and 1,260.59

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Solution

The fourth proportional to 1,958.81, 2,702.61 and 1,260.59 is: 1,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.81 : 2,702.61 = 1,260.59 : x
  2. Step 2: Convert to fraction form
    1,958.81/2,702.61 = 1,260.59/x
  3. Step 3: Cross multiply
    1,958.81x = 2,702.61 × 1,260.59
  4. Step 4: Simplify right side
    1,958.81x = 3,406,883.14
  5. Step 5: Solve for x
    x = 3,406,883.14/1,958.81
  6. Step 6: Final answer
    x = 1,739.26

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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.