Home / 2,869.56-3,959.88-1,872.96

Finding the Fourth Proportional to 2,869.56, 3,959.88 and 1,872.96

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Solution

The fourth proportional to 2,869.56, 3,959.88 and 1,872.96 is: 2,584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.56 : 3,959.88 = 1,872.96 : x
  2. Step 2: Convert to fraction form
    2,869.56/3,959.88 = 1,872.96/x
  3. Step 3: Cross multiply
    2,869.56x = 3,959.88 × 1,872.96
  4. Step 4: Simplify right side
    2,869.56x = 7,416,696.84
  5. Step 5: Solve for x
    x = 7,416,696.84/2,869.56
  6. Step 6: Final answer
    x = 2,584.61

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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.