Home / 3,619.62-4,983.93-2,871.18

Finding the Fourth Proportional to 3,619.62, 4,983.93 and 2,871.18

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Solution

The fourth proportional to 3,619.62, 4,983.93 and 2,871.18 is: 3,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.62 : 4,983.93 = 2,871.18 : x
  2. Step 2: Convert to fraction form
    3,619.62/4,983.93 = 2,871.18/x
  3. Step 3: Cross multiply
    3,619.62x = 4,983.93 × 2,871.18
  4. Step 4: Simplify right side
    3,619.62x = 14,309,760.14
  5. Step 5: Solve for x
    x = 14,309,760.14/3,619.62
  6. Step 6: Final answer
    x = 3,953.39

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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.