Home / 5,231.64-7,219.46-2,873.72

Finding the Fourth Proportional to 5,231.64, 7,219.46 and 2,873.72

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Solution

The fourth proportional to 5,231.64, 7,219.46 and 2,873.72 is: 3,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.64 : 7,219.46 = 2,873.72 : x
  2. Step 2: Convert to fraction form
    5,231.64/7,219.46 = 2,873.72/x
  3. Step 3: Cross multiply
    5,231.64x = 7,219.46 × 2,873.72
  4. Step 4: Simplify right side
    5,231.64x = 20,746,706.59
  5. Step 5: Solve for x
    x = 20,746,706.59/5,231.64
  6. Step 6: Final answer
    x = 3,965.62

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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.