Home / 5,159.14-7,738.70-1,872.22

Finding the Fourth Proportional to 5,159.14, 7,738.70 and 1,872.22

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Solution

The fourth proportional to 5,159.14, 7,738.70 and 1,872.22 is: 2,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.14 : 7,738.70 = 1,872.22 : x
  2. Step 2: Convert to fraction form
    5,159.14/7,738.70 = 1,872.22/x
  3. Step 3: Cross multiply
    5,159.14x = 7,738.70 × 1,872.22
  4. Step 4: Simplify right side
    5,159.14x = 14,488,548.91
  5. Step 5: Solve for x
    x = 14,488,548.91/5,159.14
  6. Step 6: Final answer
    x = 2,808.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.