Home / 5,125.74-7,687.83-1,427.59

Finding the Fourth Proportional to 5,125.74, 7,687.83 and 1,427.59

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Solution

The fourth proportional to 5,125.74, 7,687.83 and 1,427.59 is: 2,141.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.74 : 7,687.83 = 1,427.59 : x
  2. Step 2: Convert to fraction form
    5,125.74/7,687.83 = 1,427.59/x
  3. Step 3: Cross multiply
    5,125.74x = 7,687.83 × 1,427.59
  4. Step 4: Simplify right side
    5,125.74x = 10,975,069.23
  5. Step 5: Solve for x
    x = 10,975,069.23/5,125.74
  6. Step 6: Final answer
    x = 2,141.17

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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.