Home / 3,678.09-5,076.57-2,419.27

Finding the Fourth Proportional to 3,678.09, 5,076.57 and 2,419.27

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Solution

The fourth proportional to 3,678.09, 5,076.57 and 2,419.27 is: 3,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.09 : 5,076.57 = 2,419.27 : x
  2. Step 2: Convert to fraction form
    3,678.09/5,076.57 = 2,419.27/x
  3. Step 3: Cross multiply
    3,678.09x = 5,076.57 × 2,419.27
  4. Step 4: Simplify right side
    3,678.09x = 12,281,556.02
  5. Step 5: Solve for x
    x = 12,281,556.02/3,678.09
  6. Step 6: Final answer
    x = 3,339.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.