Home / 3,782.28-5,671.89-1,316.58

Finding the Fourth Proportional to 3,782.28, 5,671.89 and 1,316.58

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Solution

The fourth proportional to 3,782.28, 5,671.89 and 1,316.58 is: 1,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.28 : 5,671.89 = 1,316.58 : x
  2. Step 2: Convert to fraction form
    3,782.28/5,671.89 = 1,316.58/x
  3. Step 3: Cross multiply
    3,782.28x = 5,671.89 × 1,316.58
  4. Step 4: Simplify right side
    3,782.28x = 7,467,496.94
  5. Step 5: Solve for x
    x = 7,467,496.94/3,782.28
  6. Step 6: Final answer
    x = 1,974.34

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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.