Home / 6,221.28-9,331.92-1,604.28

Finding the Fourth Proportional to 6,221.28, 9,331.92 and 1,604.28

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Solution

The fourth proportional to 6,221.28, 9,331.92 and 1,604.28 is: 2,406.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.28 : 9,331.92 = 1,604.28 : x
  2. Step 2: Convert to fraction form
    6,221.28/9,331.92 = 1,604.28/x
  3. Step 3: Cross multiply
    6,221.28x = 9,331.92 × 1,604.28
  4. Step 4: Simplify right side
    6,221.28x = 14,971,012.62
  5. Step 5: Solve for x
    x = 14,971,012.62/6,221.28
  6. Step 6: Final answer
    x = 2,406.42

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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.