Home / 3,621.41-5,432.56-1,280.93

Finding the Fourth Proportional to 3,621.41, 5,432.56 and 1,280.93

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Solution

The fourth proportional to 3,621.41, 5,432.56 and 1,280.93 is: 1,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.41 : 5,432.56 = 1,280.93 : x
  2. Step 2: Convert to fraction form
    3,621.41/5,432.56 = 1,280.93/x
  3. Step 3: Cross multiply
    3,621.41x = 5,432.56 × 1,280.93
  4. Step 4: Simplify right side
    3,621.41x = 6,958,725.88
  5. Step 5: Solve for x
    x = 6,958,725.88/3,621.41
  6. Step 6: Final answer
    x = 1,921.55

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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.