Home / 3,621.59-5,432.82-1,281.12

Finding the Fourth Proportional to 3,621.59, 5,432.82 and 1,281.12

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Solution

The fourth proportional to 3,621.59, 5,432.82 and 1,281.12 is: 1,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.59 : 5,432.82 = 1,281.12 : x
  2. Step 2: Convert to fraction form
    3,621.59/5,432.82 = 1,281.12/x
  3. Step 3: Cross multiply
    3,621.59x = 5,432.82 × 1,281.12
  4. Step 4: Simplify right side
    3,621.59x = 6,960,076.39
  5. Step 5: Solve for x
    x = 6,960,076.39/3,621.59
  6. Step 6: Final answer
    x = 1,921.83

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1.5x scale

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.