Home / 3,928.50-5,894.37-1,621.62

Finding the Fourth Proportional to 3,928.50, 5,894.37 and 1,621.62

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Solution

The fourth proportional to 3,928.50, 5,894.37 and 1,621.62 is: 2,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.50 : 5,894.37 = 1,621.62 : x
  2. Step 2: Convert to fraction form
    3,928.50/5,894.37 = 1,621.62/x
  3. Step 3: Cross multiply
    3,928.50x = 5,894.37 × 1,621.62
  4. Step 4: Simplify right side
    3,928.50x = 9,558,428.28
  5. Step 5: Solve for x
    x = 9,558,428.28/3,928.50
  6. Step 6: Final answer
    x = 2,433.10

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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.