Home / 1,621.75-2,432.66-1,213.48

Finding the Fourth Proportional to 1,621.75, 2,432.66 and 1,213.48

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Solution

The fourth proportional to 1,621.75, 2,432.66 and 1,213.48 is: 1,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.75 : 2,432.66 = 1,213.48 : x
  2. Step 2: Convert to fraction form
    1,621.75/2,432.66 = 1,213.48/x
  3. Step 3: Cross multiply
    1,621.75x = 2,432.66 × 1,213.48
  4. Step 4: Simplify right side
    1,621.75x = 2,951,966.03
  5. Step 5: Solve for x
    x = 2,951,966.03/1,621.75
  6. Step 6: Final answer
    x = 1,820.24

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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.