Home / 5,621.69-8,432.94-2,158.94

Finding the Fourth Proportional to 5,621.69, 8,432.94 and 2,158.94

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Solution

The fourth proportional to 5,621.69, 8,432.94 and 2,158.94 is: 3,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.69 : 8,432.94 = 2,158.94 : x
  2. Step 2: Convert to fraction form
    5,621.69/8,432.94 = 2,158.94/x
  3. Step 3: Cross multiply
    5,621.69x = 8,432.94 × 2,158.94
  4. Step 4: Simplify right side
    5,621.69x = 18,206,190.40
  5. Step 5: Solve for x
    x = 18,206,190.40/5,621.69
  6. Step 6: Final answer
    x = 3,238.56

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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.