Home / 2,101.05-3,146.99-1,731.69

Finding the Fourth Proportional to 2,101.05, 3,146.99 and 1,731.69

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Solution

The fourth proportional to 2,101.05, 3,146.99 and 1,731.69 is: 2,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.05 : 3,146.99 = 1,731.69 : x
  2. Step 2: Convert to fraction form
    2,101.05/3,146.99 = 1,731.69/x
  3. Step 3: Cross multiply
    2,101.05x = 3,146.99 × 1,731.69
  4. Step 4: Simplify right side
    2,101.05x = 5,449,602.45
  5. Step 5: Solve for x
    x = 5,449,602.45/2,101.05
  6. Step 6: Final answer
    x = 2,593.75

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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.