Home / 3,788.68-5,681.40-1,322.77

Finding the Fourth Proportional to 3,788.68, 5,681.40 and 1,322.77

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Solution

The fourth proportional to 3,788.68, 5,681.40 and 1,322.77 is: 1,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.68 : 5,681.40 = 1,322.77 : x
  2. Step 2: Convert to fraction form
    3,788.68/5,681.40 = 1,322.77/x
  3. Step 3: Cross multiply
    3,788.68x = 5,681.40 × 1,322.77
  4. Step 4: Simplify right side
    3,788.68x = 7,515,185.48
  5. Step 5: Solve for x
    x = 7,515,185.48/3,788.68
  6. Step 6: Final answer
    x = 1,983.59

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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.