Home / 3,078.41-4,617.20-887.36

Finding the Fourth Proportional to 3,078.41, 4,617.20 and 887.36

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Solution

The fourth proportional to 3,078.41, 4,617.20 and 887.36 is: 1,330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.41 : 4,617.20 = 887.36 : x
  2. Step 2: Convert to fraction form
    3,078.41/4,617.20 = 887.36/x
  3. Step 3: Cross multiply
    3,078.41x = 4,617.20 × 887.36
  4. Step 4: Simplify right side
    3,078.41x = 4,097,132.35
  5. Step 5: Solve for x
    x = 4,097,132.35/3,078.41
  6. Step 6: Final answer
    x = 1,330.92

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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.