Home / 3,716.25-5,129.64-2,671.35

Finding the Fourth Proportional to 3,716.25, 5,129.64 and 2,671.35

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Solution

The fourth proportional to 3,716.25, 5,129.64 and 2,671.35 is: 3,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.25 : 5,129.64 = 2,671.35 : x
  2. Step 2: Convert to fraction form
    3,716.25/5,129.64 = 2,671.35/x
  3. Step 3: Cross multiply
    3,716.25x = 5,129.64 × 2,671.35
  4. Step 4: Simplify right side
    3,716.25x = 13,703,063.81
  5. Step 5: Solve for x
    x = 13,703,063.81/3,716.25
  6. Step 6: Final answer
    x = 3,687.34

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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.