Home / 3,628.72-5,003.67-2,871.19

Finding the Fourth Proportional to 3,628.72, 5,003.67 and 2,871.19

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Solution

The fourth proportional to 3,628.72, 5,003.67 and 2,871.19 is: 3,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.72 : 5,003.67 = 2,871.19 : x
  2. Step 2: Convert to fraction form
    3,628.72/5,003.67 = 2,871.19/x
  3. Step 3: Cross multiply
    3,628.72x = 5,003.67 × 2,871.19
  4. Step 4: Simplify right side
    3,628.72x = 14,366,487.27
  5. Step 5: Solve for x
    x = 14,366,487.27/3,628.72
  6. Step 6: Final answer
    x = 3,959.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.