Home / 3,788.68-5,684.36-1,324.18

Finding the Fourth Proportional to 3,788.68, 5,684.36 and 1,324.18

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Solution

The fourth proportional to 3,788.68, 5,684.36 and 1,324.18 is: 1,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.68 : 5,684.36 = 1,324.18 : x
  2. Step 2: Convert to fraction form
    3,788.68/5,684.36 = 1,324.18/x
  3. Step 3: Cross multiply
    3,788.68x = 5,684.36 × 1,324.18
  4. Step 4: Simplify right side
    3,788.68x = 7,527,115.82
  5. Step 5: Solve for x
    x = 7,527,115.82/3,788.68
  6. Step 6: Final answer
    x = 1,986.74

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1.5x scale

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.