Home / 3,921.78-5,884.71-1,582.36

Finding the Fourth Proportional to 3,921.78, 5,884.71 and 1,582.36

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Solution

The fourth proportional to 3,921.78, 5,884.71 and 1,582.36 is: 2,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.78 : 5,884.71 = 1,582.36 : x
  2. Step 2: Convert to fraction form
    3,921.78/5,884.71 = 1,582.36/x
  3. Step 3: Cross multiply
    3,921.78x = 5,884.71 × 1,582.36
  4. Step 4: Simplify right side
    3,921.78x = 9,311,729.72
  5. Step 5: Solve for x
    x = 9,311,729.72/3,921.78
  6. Step 6: Final answer
    x = 2,374.36

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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.