Home / 5,159.82-7,735.01-1,872.18

Finding the Fourth Proportional to 5,159.82, 7,735.01 and 1,872.18

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Solution

The fourth proportional to 5,159.82, 7,735.01 and 1,872.18 is: 2,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.82 : 7,735.01 = 1,872.18 : x
  2. Step 2: Convert to fraction form
    5,159.82/7,735.01 = 1,872.18/x
  3. Step 3: Cross multiply
    5,159.82x = 7,735.01 × 1,872.18
  4. Step 4: Simplify right side
    5,159.82x = 14,481,331.02
  5. Step 5: Solve for x
    x = 14,481,331.02/5,159.82
  6. Step 6: Final answer
    x = 2,806.56

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1.5x scale

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.