Home / 5,621.06-8,432.01-2,158.31

Finding the Fourth Proportional to 5,621.06, 8,432.01 and 2,158.31

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Solution

The fourth proportional to 5,621.06, 8,432.01 and 2,158.31 is: 3,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.06 : 8,432.01 = 2,158.31 : x
  2. Step 2: Convert to fraction form
    5,621.06/8,432.01 = 2,158.31/x
  3. Step 3: Cross multiply
    5,621.06x = 8,432.01 × 2,158.31
  4. Step 4: Simplify right side
    5,621.06x = 18,198,912.58
  5. Step 5: Solve for x
    x = 18,198,912.58/5,621.06
  6. Step 6: Final answer
    x = 3,237.63

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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.