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Finding the Fourth Proportional to 3,852.72, 5,318.72 and 2,671.74

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Solution

The fourth proportional to 3,852.72, 5,318.72 and 2,671.74 is: 3,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.72 : 5,318.72 = 2,671.74 : x
  2. Step 2: Convert to fraction form
    3,852.72/5,318.72 = 2,671.74/x
  3. Step 3: Cross multiply
    3,852.72x = 5,318.72 × 2,671.74
  4. Step 4: Simplify right side
    3,852.72x = 14,210,236.97
  5. Step 5: Solve for x
    x = 14,210,236.97/3,852.72
  6. Step 6: Final answer
    x = 3,688.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.