Home / 2,226.10-3,071.68-1,231.39

Finding the Fourth Proportional to 2,226.10, 3,071.68 and 1,231.39

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Solution

The fourth proportional to 2,226.10, 3,071.68 and 1,231.39 is: 1,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.10 : 3,071.68 = 1,231.39 : x
  2. Step 2: Convert to fraction form
    2,226.10/3,071.68 = 1,231.39/x
  3. Step 3: Cross multiply
    2,226.10x = 3,071.68 × 1,231.39
  4. Step 4: Simplify right side
    2,226.10x = 3,782,419.52
  5. Step 5: Solve for x
    x = 3,782,419.52/2,226.10
  6. Step 6: Final answer
    x = 1,699.12

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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.