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Finding the Fourth Proportional to 2,115.08, 3,173.08 and 634.24

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Solution

The fourth proportional to 2,115.08, 3,173.08 and 634.24 is: 951.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.08 : 3,173.08 = 634.24 : x
  2. Step 2: Convert to fraction form
    2,115.08/3,173.08 = 634.24/x
  3. Step 3: Cross multiply
    2,115.08x = 3,173.08 × 634.24
  4. Step 4: Simplify right side
    2,115.08x = 2,012,475.22
  5. Step 5: Solve for x
    x = 2,012,475.22/2,115.08
  6. Step 6: Final answer
    x = 951.49

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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.