Home / 2,186.54-3,274.89-1,259.90

Finding the Fourth Proportional to 2,186.54, 3,274.89 and 1,259.90

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Solution

The fourth proportional to 2,186.54, 3,274.89 and 1,259.90 is: 1,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.54 : 3,274.89 = 1,259.90 : x
  2. Step 2: Convert to fraction form
    2,186.54/3,274.89 = 1,259.90/x
  3. Step 3: Cross multiply
    2,186.54x = 3,274.89 × 1,259.90
  4. Step 4: Simplify right side
    2,186.54x = 4,126,033.91
  5. Step 5: Solve for x
    x = 4,126,033.91/2,186.54
  6. Step 6: Final answer
    x = 1,887.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.