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Finding the Fourth Proportional to 2,281.37, 3,422.28 and 637.92

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Solution

The fourth proportional to 2,281.37, 3,422.28 and 637.92 is: 956.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.37 : 3,422.28 = 637.92 : x
  2. Step 2: Convert to fraction form
    2,281.37/3,422.28 = 637.92/x
  3. Step 3: Cross multiply
    2,281.37x = 3,422.28 × 637.92
  4. Step 4: Simplify right side
    2,281.37x = 2,183,136.52
  5. Step 5: Solve for x
    x = 2,183,136.52/2,281.37
  6. Step 6: Final answer
    x = 956.94

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1.5x scale

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.