Home / 5,631.37-8,441.22-2,120.69

Finding the Fourth Proportional to 5,631.37, 8,441.22 and 2,120.69

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Solution

The fourth proportional to 5,631.37, 8,441.22 and 2,120.69 is: 3,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.37 : 8,441.22 = 2,120.69 : x
  2. Step 2: Convert to fraction form
    5,631.37/8,441.22 = 2,120.69/x
  3. Step 3: Cross multiply
    5,631.37x = 8,441.22 × 2,120.69
  4. Step 4: Simplify right side
    5,631.37x = 17,901,210.84
  5. Step 5: Solve for x
    x = 17,901,210.84/5,631.37
  6. Step 6: Final answer
    x = 3,178.84

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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.