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Finding the Fourth Proportional to 2,155.55, 3,233.36 and 694.71

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Solution

The fourth proportional to 2,155.55, 3,233.36 and 694.71 is: 1,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.55 : 3,233.36 = 694.71 : x
  2. Step 2: Convert to fraction form
    2,155.55/3,233.36 = 694.71/x
  3. Step 3: Cross multiply
    2,155.55x = 3,233.36 × 694.71
  4. Step 4: Simplify right side
    2,155.55x = 2,246,247.53
  5. Step 5: Solve for x
    x = 2,246,247.53/2,155.55
  6. Step 6: Final answer
    x = 1,042.08

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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.