Home / 2,489.14-3,434.84-1,426.89

Finding the Fourth Proportional to 2,489.14, 3,434.84 and 1,426.89

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Solution

The fourth proportional to 2,489.14, 3,434.84 and 1,426.89 is: 1,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.14 : 3,434.84 = 1,426.89 : x
  2. Step 2: Convert to fraction form
    2,489.14/3,434.84 = 1,426.89/x
  3. Step 3: Cross multiply
    2,489.14x = 3,434.84 × 1,426.89
  4. Step 4: Simplify right side
    2,489.14x = 4,901,138.85
  5. Step 5: Solve for x
    x = 4,901,138.85/2,489.14
  6. Step 6: Final answer
    x = 1,969.01

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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.