Home / 1,981.08-2,735.15-1,273.25

Finding the Fourth Proportional to 1,981.08, 2,735.15 and 1,273.25

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Solution

The fourth proportional to 1,981.08, 2,735.15 and 1,273.25 is: 1,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.08 : 2,735.15 = 1,273.25 : x
  2. Step 2: Convert to fraction form
    1,981.08/2,735.15 = 1,273.25/x
  3. Step 3: Cross multiply
    1,981.08x = 2,735.15 × 1,273.25
  4. Step 4: Simplify right side
    1,981.08x = 3,482,530.21
  5. Step 5: Solve for x
    x = 3,482,530.21/1,981.08
  6. Step 6: Final answer
    x = 1,757.89

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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.