Home / 2,101.68-3,149.04-1,277.45

Finding the Fourth Proportional to 2,101.68, 3,149.04 and 1,277.45

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Solution

The fourth proportional to 2,101.68, 3,149.04 and 1,277.45 is: 1,914.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.68 : 3,149.04 = 1,277.45 : x
  2. Step 2: Convert to fraction form
    2,101.68/3,149.04 = 1,277.45/x
  3. Step 3: Cross multiply
    2,101.68x = 3,149.04 × 1,277.45
  4. Step 4: Simplify right side
    2,101.68x = 4,022,741.15
  5. Step 5: Solve for x
    x = 4,022,741.15/2,101.68
  6. Step 6: Final answer
    x = 1,914.06

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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.