Home / 3,621.03-5,432.00-1,280.55

Finding the Fourth Proportional to 3,621.03, 5,432.00 and 1,280.55

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Solution

The fourth proportional to 3,621.03, 5,432.00 and 1,280.55 is: 1,920.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.03 : 5,432.00 = 1,280.55 : x
  2. Step 2: Convert to fraction form
    3,621.03/5,432.00 = 1,280.55/x
  3. Step 3: Cross multiply
    3,621.03x = 5,432.00 × 1,280.55
  4. Step 4: Simplify right side
    3,621.03x = 6,955,961.57
  5. Step 5: Solve for x
    x = 6,955,961.57/3,621.03
  6. Step 6: Final answer
    x = 1,920.99

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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.