Home / 3,789.48-5,685.16-1,324.32

Finding the Fourth Proportional to 3,789.48, 5,685.16 and 1,324.32

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Solution

The fourth proportional to 3,789.48, 5,685.16 and 1,324.32 is: 1,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.48 : 5,685.16 = 1,324.32 : x
  2. Step 2: Convert to fraction form
    3,789.48/5,685.16 = 1,324.32/x
  3. Step 3: Cross multiply
    3,789.48x = 5,685.16 × 1,324.32
  4. Step 4: Simplify right side
    3,789.48x = 7,528,971.09
  5. Step 5: Solve for x
    x = 7,528,971.09/3,789.48
  6. Step 6: Final answer
    x = 1,986.81

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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.