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Finding the Fourth Proportional to 3,093.57, 4,639.50 and 872.25

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Solution

The fourth proportional to 3,093.57, 4,639.50 and 872.25 is: 1,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.57 : 4,639.50 = 872.25 : x
  2. Step 2: Convert to fraction form
    3,093.57/4,639.50 = 872.25/x
  3. Step 3: Cross multiply
    3,093.57x = 4,639.50 × 872.25
  4. Step 4: Simplify right side
    3,093.57x = 4,046,803.88
  5. Step 5: Solve for x
    x = 4,046,803.88/3,093.57
  6. Step 6: Final answer
    x = 1,308.13

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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.