Home / 3,078.89-4,617.25-887.03

Finding the Fourth Proportional to 3,078.89, 4,617.25 and 887.03

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Solution

The fourth proportional to 3,078.89, 4,617.25 and 887.03 is: 1,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.89 : 4,617.25 = 887.03 : x
  2. Step 2: Convert to fraction form
    3,078.89/4,617.25 = 887.03/x
  3. Step 3: Cross multiply
    3,078.89x = 4,617.25 × 887.03
  4. Step 4: Simplify right side
    3,078.89x = 4,095,639.27
  5. Step 5: Solve for x
    x = 4,095,639.27/3,078.89
  6. Step 6: Final answer
    x = 1,330.23

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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.