Home / 5,159.09-7,687.81-4,991.83

Finding the Fourth Proportional to 5,159.09, 7,687.81 and 4,991.83

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Solution

The fourth proportional to 5,159.09, 7,687.81 and 4,991.83 is: 7,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.09 : 7,687.81 = 4,991.83 : x
  2. Step 2: Convert to fraction form
    5,159.09/7,687.81 = 4,991.83/x
  3. Step 3: Cross multiply
    5,159.09x = 7,687.81 × 4,991.83
  4. Step 4: Simplify right side
    5,159.09x = 38,376,227.61
  5. Step 5: Solve for x
    x = 38,376,227.61/5,159.09
  6. Step 6: Final answer
    x = 7,438.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.