Home / 3,719.76-5,588.28-3,218.64

Finding the Fourth Proportional to 3,719.76, 5,588.28 and 3,218.64

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Solution

The fourth proportional to 3,719.76, 5,588.28 and 3,218.64 is: 4,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.76 : 5,588.28 = 3,218.64 : x
  2. Step 2: Convert to fraction form
    3,719.76/5,588.28 = 3,218.64/x
  3. Step 3: Cross multiply
    3,719.76x = 5,588.28 × 3,218.64
  4. Step 4: Simplify right side
    3,719.76x = 17,986,661.54
  5. Step 5: Solve for x
    x = 17,986,661.54/3,719.76
  6. Step 6: Final answer
    x = 4,835.44

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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.