Home / 5,089.54-7,631.94-2,981.80

Finding the Fourth Proportional to 5,089.54, 7,631.94 and 2,981.80

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Solution

The fourth proportional to 5,089.54, 7,631.94 and 2,981.80 is: 4,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.54 : 7,631.94 = 2,981.80 : x
  2. Step 2: Convert to fraction form
    5,089.54/7,631.94 = 2,981.80/x
  3. Step 3: Cross multiply
    5,089.54x = 7,631.94 × 2,981.80
  4. Step 4: Simplify right side
    5,089.54x = 22,756,918.69
  5. Step 5: Solve for x
    x = 22,756,918.69/5,089.54
  6. Step 6: Final answer
    x = 4,471.31

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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.