Home / 3,628.24-5,432.96-3,111.60

Finding the Fourth Proportional to 3,628.24, 5,432.96 and 3,111.60

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Solution

The fourth proportional to 3,628.24, 5,432.96 and 3,111.60 is: 4,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.24 : 5,432.96 = 3,111.60 : x
  2. Step 2: Convert to fraction form
    3,628.24/5,432.96 = 3,111.60/x
  3. Step 3: Cross multiply
    3,628.24x = 5,432.96 × 3,111.60
  4. Step 4: Simplify right side
    3,628.24x = 16,905,198.34
  5. Step 5: Solve for x
    x = 16,905,198.34/3,628.24
  6. Step 6: Final answer
    x = 4,659.34

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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.