Home / 3,723.40-5,584.28-1,257.89

Finding the Fourth Proportional to 3,723.40, 5,584.28 and 1,257.89

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Solution

The fourth proportional to 3,723.40, 5,584.28 and 1,257.89 is: 1,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.40 : 5,584.28 = 1,257.89 : x
  2. Step 2: Convert to fraction form
    3,723.40/5,584.28 = 1,257.89/x
  3. Step 3: Cross multiply
    3,723.40x = 5,584.28 × 1,257.89
  4. Step 4: Simplify right side
    3,723.40x = 7,024,409.97
  5. Step 5: Solve for x
    x = 7,024,409.97/3,723.40
  6. Step 6: Final answer
    x = 1,886.56

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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.