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Finding the Fourth Proportional to 2,392.69, 3,589.03 and 637.87

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Solution

The fourth proportional to 2,392.69, 3,589.03 and 637.87 is: 956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.69 : 3,589.03 = 637.87 : x
  2. Step 2: Convert to fraction form
    2,392.69/3,589.03 = 637.87/x
  3. Step 3: Cross multiply
    2,392.69x = 3,589.03 × 637.87
  4. Step 4: Simplify right side
    2,392.69x = 2,289,334.57
  5. Step 5: Solve for x
    x = 2,289,334.57/2,392.69
  6. Step 6: Final answer
    x = 956.80

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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.