Home / 1,727.79-2,381.84-1,195.86

Finding the Fourth Proportional to 1,727.79, 2,381.84 and 1,195.86

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Solution

The fourth proportional to 1,727.79, 2,381.84 and 1,195.86 is: 1,648.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.79 : 2,381.84 = 1,195.86 : x
  2. Step 2: Convert to fraction form
    1,727.79/2,381.84 = 1,195.86/x
  3. Step 3: Cross multiply
    1,727.79x = 2,381.84 × 1,195.86
  4. Step 4: Simplify right side
    1,727.79x = 2,848,347.18
  5. Step 5: Solve for x
    x = 2,848,347.18/1,727.79
  6. Step 6: Final answer
    x = 1,648.55

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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.