Home / 3,639.46-5,018.96-2,310.80

Finding the Fourth Proportional to 3,639.46, 5,018.96 and 2,310.80

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Solution

The fourth proportional to 3,639.46, 5,018.96 and 2,310.80 is: 3,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.46 : 5,018.96 = 2,310.80 : x
  2. Step 2: Convert to fraction form
    3,639.46/5,018.96 = 2,310.80/x
  3. Step 3: Cross multiply
    3,639.46x = 5,018.96 × 2,310.80
  4. Step 4: Simplify right side
    3,639.46x = 11,597,812.77
  5. Step 5: Solve for x
    x = 11,597,812.77/3,639.46
  6. Step 6: Final answer
    x = 3,186.69

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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.