Home / 3,716.98-5,129.44-2,101.80

Finding the Fourth Proportional to 3,716.98, 5,129.44 and 2,101.80

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Solution

The fourth proportional to 3,716.98, 5,129.44 and 2,101.80 is: 2,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.98 : 5,129.44 = 2,101.80 : x
  2. Step 2: Convert to fraction form
    3,716.98/5,129.44 = 2,101.80/x
  3. Step 3: Cross multiply
    3,716.98x = 5,129.44 × 2,101.80
  4. Step 4: Simplify right side
    3,716.98x = 10,781,056.99
  5. Step 5: Solve for x
    x = 10,781,056.99/3,716.98
  6. Step 6: Final answer
    x = 2,900.49

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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.