Home / 2,133.84-2,944.96-1,189.79

Finding the Fourth Proportional to 2,133.84, 2,944.96 and 1,189.79

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Solution

The fourth proportional to 2,133.84, 2,944.96 and 1,189.79 is: 1,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.84 : 2,944.96 = 1,189.79 : x
  2. Step 2: Convert to fraction form
    2,133.84/2,944.96 = 1,189.79/x
  3. Step 3: Cross multiply
    2,133.84x = 2,944.96 × 1,189.79
  4. Step 4: Simplify right side
    2,133.84x = 3,503,877.30
  5. Step 5: Solve for x
    x = 3,503,877.30/2,133.84
  6. Step 6: Final answer
    x = 1,642.05

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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.