Home / 1,713.40-2,571.12-1,186.73

Finding the Fourth Proportional to 1,713.40, 2,571.12 and 1,186.73

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Solution

The fourth proportional to 1,713.40, 2,571.12 and 1,186.73 is: 1,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.40 : 2,571.12 = 1,186.73 : x
  2. Step 2: Convert to fraction form
    1,713.40/2,571.12 = 1,186.73/x
  3. Step 3: Cross multiply
    1,713.40x = 2,571.12 × 1,186.73
  4. Step 4: Simplify right side
    1,713.40x = 3,051,211.45
  5. Step 5: Solve for x
    x = 3,051,211.45/1,713.40
  6. Step 6: Final answer
    x = 1,780.79

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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.