Home / 3,788.85-5,681.25-1,322.94

Finding the Fourth Proportional to 3,788.85, 5,681.25 and 1,322.94

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Solution

The fourth proportional to 3,788.85, 5,681.25 and 1,322.94 is: 1,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.85 : 5,681.25 = 1,322.94 : x
  2. Step 2: Convert to fraction form
    3,788.85/5,681.25 = 1,322.94/x
  3. Step 3: Cross multiply
    3,788.85x = 5,681.25 × 1,322.94
  4. Step 4: Simplify right side
    3,788.85x = 7,515,952.88
  5. Step 5: Solve for x
    x = 7,515,952.88/3,788.85
  6. Step 6: Final answer
    x = 1,983.70

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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.