Home / 5,485.84-8,231.56-2,201.20

Finding the Fourth Proportional to 5,485.84, 8,231.56 and 2,201.20

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Solution

The fourth proportional to 5,485.84, 8,231.56 and 2,201.20 is: 3,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.84 : 8,231.56 = 2,201.20 : x
  2. Step 2: Convert to fraction form
    5,485.84/8,231.56 = 2,201.20/x
  3. Step 3: Cross multiply
    5,485.84x = 8,231.56 × 2,201.20
  4. Step 4: Simplify right side
    5,485.84x = 18,119,309.87
  5. Step 5: Solve for x
    x = 18,119,309.87/5,485.84
  6. Step 6: Final answer
    x = 3,302.92

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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.