Home / 2,125.70-2,933.64-1,241.78

Finding the Fourth Proportional to 2,125.70, 2,933.64 and 1,241.78

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Solution

The fourth proportional to 2,125.70, 2,933.64 and 1,241.78 is: 1,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.70 : 2,933.64 = 1,241.78 : x
  2. Step 2: Convert to fraction form
    2,125.70/2,933.64 = 1,241.78/x
  3. Step 3: Cross multiply
    2,125.70x = 2,933.64 × 1,241.78
  4. Step 4: Simplify right side
    2,125.70x = 3,642,935.48
  5. Step 5: Solve for x
    x = 3,642,935.48/2,125.70
  6. Step 6: Final answer
    x = 1,713.76

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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.