Home / 5,087.73-7,631.90-1,578.07

Finding the Fourth Proportional to 5,087.73, 7,631.90 and 1,578.07

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Solution

The fourth proportional to 5,087.73, 7,631.90 and 1,578.07 is: 2,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.73 : 7,631.90 = 1,578.07 : x
  2. Step 2: Convert to fraction form
    5,087.73/7,631.90 = 1,578.07/x
  3. Step 3: Cross multiply
    5,087.73x = 7,631.90 × 1,578.07
  4. Step 4: Simplify right side
    5,087.73x = 12,043,672.43
  5. Step 5: Solve for x
    x = 12,043,672.43/5,087.73
  6. Step 6: Final answer
    x = 2,367.20

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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.