Home / 3,175.81-4,381.60-2,057.61

Finding the Fourth Proportional to 3,175.81, 4,381.60 and 2,057.61

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Solution

The fourth proportional to 3,175.81, 4,381.60 and 2,057.61 is: 2,838.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.81 : 4,381.60 = 2,057.61 : x
  2. Step 2: Convert to fraction form
    3,175.81/4,381.60 = 2,057.61/x
  3. Step 3: Cross multiply
    3,175.81x = 4,381.60 × 2,057.61
  4. Step 4: Simplify right side
    3,175.81x = 9,015,623.98
  5. Step 5: Solve for x
    x = 9,015,623.98/3,175.81
  6. Step 6: Final answer
    x = 2,838.84

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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.