Home / 2,249.85-3,103.55-1,318.17

Finding the Fourth Proportional to 2,249.85, 3,103.55 and 1,318.17

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Solution

The fourth proportional to 2,249.85, 3,103.55 and 1,318.17 is: 1,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.85 : 3,103.55 = 1,318.17 : x
  2. Step 2: Convert to fraction form
    2,249.85/3,103.55 = 1,318.17/x
  3. Step 3: Cross multiply
    2,249.85x = 3,103.55 × 1,318.17
  4. Step 4: Simplify right side
    2,249.85x = 4,090,999.91
  5. Step 5: Solve for x
    x = 4,090,999.91/2,249.85
  6. Step 6: Final answer
    x = 1,818.34

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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.