Home / 3,621.75-5,432.63-2,380.19

Finding the Fourth Proportional to 3,621.75, 5,432.63 and 2,380.19

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Solution

The fourth proportional to 3,621.75, 5,432.63 and 2,380.19 is: 3,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.75 : 5,432.63 = 2,380.19 : x
  2. Step 2: Convert to fraction form
    3,621.75/5,432.63 = 2,380.19/x
  3. Step 3: Cross multiply
    3,621.75x = 5,432.63 × 2,380.19
  4. Step 4: Simplify right side
    3,621.75x = 12,930,652.54
  5. Step 5: Solve for x
    x = 12,930,652.54/3,621.75
  6. Step 6: Final answer
    x = 3,570.28

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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.