Home / 2,226.45-3,073.80-1,980.39

Finding the Fourth Proportional to 2,226.45, 3,073.80 and 1,980.39

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Solution

The fourth proportional to 2,226.45, 3,073.80 and 1,980.39 is: 2,734.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.45 : 3,073.80 = 1,980.39 : x
  2. Step 2: Convert to fraction form
    2,226.45/3,073.80 = 1,980.39/x
  3. Step 3: Cross multiply
    2,226.45x = 3,073.80 × 1,980.39
  4. Step 4: Simplify right side
    2,226.45x = 6,087,322.78
  5. Step 5: Solve for x
    x = 6,087,322.78/2,226.45
  6. Step 6: Final answer
    x = 2,734.09

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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.