Home / 6,381.28-9,574.32-2,221.60

Finding the Fourth Proportional to 6,381.28, 9,574.32 and 2,221.60

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Solution

The fourth proportional to 6,381.28, 9,574.32 and 2,221.60 is: 3,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.28 : 9,574.32 = 2,221.60 : x
  2. Step 2: Convert to fraction form
    6,381.28/9,574.32 = 2,221.60/x
  3. Step 3: Cross multiply
    6,381.28x = 9,574.32 × 2,221.60
  4. Step 4: Simplify right side
    6,381.28x = 21,270,309.31
  5. Step 5: Solve for x
    x = 21,270,309.31/6,381.28
  6. Step 6: Final answer
    x = 3,333.24

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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.