Home / 1,621.44-2,432.16-1,379.52

Finding the Fourth Proportional to 1,621.44, 2,432.16 and 1,379.52

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Solution

The fourth proportional to 1,621.44, 2,432.16 and 1,379.52 is: 2,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.44 : 2,432.16 = 1,379.52 : x
  2. Step 2: Convert to fraction form
    1,621.44/2,432.16 = 1,379.52/x
  3. Step 3: Cross multiply
    1,621.44x = 2,432.16 × 1,379.52
  4. Step 4: Simplify right side
    1,621.44x = 3,355,213.36
  5. Step 5: Solve for x
    x = 3,355,213.36/1,621.44
  6. Step 6: Final answer
    x = 2,069.28

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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.