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Finding the Fourth Proportional to 2,155.58, 3,234.11 and 922.94

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Solution

The fourth proportional to 2,155.58, 3,234.11 and 922.94 is: 1,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.58 : 3,234.11 = 922.94 : x
  2. Step 2: Convert to fraction form
    2,155.58/3,234.11 = 922.94/x
  3. Step 3: Cross multiply
    2,155.58x = 3,234.11 × 922.94
  4. Step 4: Simplify right side
    2,155.58x = 2,984,889.48
  5. Step 5: Solve for x
    x = 2,984,889.48/2,155.58
  6. Step 6: Final answer
    x = 1,384.73

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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.