Home / 2,098.80-3,146.64-1,447.68

Finding the Fourth Proportional to 2,098.80, 3,146.64 and 1,447.68

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Solution

The fourth proportional to 2,098.80, 3,146.64 and 1,447.68 is: 2,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.80 : 3,146.64 = 1,447.68 : x
  2. Step 2: Convert to fraction form
    2,098.80/3,146.64 = 1,447.68/x
  3. Step 3: Cross multiply
    2,098.80x = 3,146.64 × 1,447.68
  4. Step 4: Simplify right side
    2,098.80x = 4,555,327.80
  5. Step 5: Solve for x
    x = 4,555,327.80/2,098.80
  6. Step 6: Final answer
    x = 2,170.44

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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.