Home / 1,958.30-2,702.48-1,172.19

Finding the Fourth Proportional to 1,958.30, 2,702.48 and 1,172.19

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Solution

The fourth proportional to 1,958.30, 2,702.48 and 1,172.19 is: 1,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.30 : 2,702.48 = 1,172.19 : x
  2. Step 2: Convert to fraction form
    1,958.30/2,702.48 = 1,172.19/x
  3. Step 3: Cross multiply
    1,958.30x = 2,702.48 × 1,172.19
  4. Step 4: Simplify right side
    1,958.30x = 3,167,820.03
  5. Step 5: Solve for x
    x = 3,167,820.03/1,958.30
  6. Step 6: Final answer
    x = 1,617.64

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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.