Home / 3,180.10-4,769.20-1,621.93

Finding the Fourth Proportional to 3,180.10, 4,769.20 and 1,621.93

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Solution

The fourth proportional to 3,180.10, 4,769.20 and 1,621.93 is: 2,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.10 : 4,769.20 = 1,621.93 : x
  2. Step 2: Convert to fraction form
    3,180.10/4,769.20 = 1,621.93/x
  3. Step 3: Cross multiply
    3,180.10x = 4,769.20 × 1,621.93
  4. Step 4: Simplify right side
    3,180.10x = 7,735,308.56
  5. Step 5: Solve for x
    x = 7,735,308.56/3,180.10
  6. Step 6: Final answer
    x = 2,432.41

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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.