Home / 1,349.41-1,857.96-1,226.38

Finding the Fourth Proportional to 1,349.41, 1,857.96 and 1,226.38

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Solution

The fourth proportional to 1,349.41, 1,857.96 and 1,226.38 is: 1,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.41 : 1,857.96 = 1,226.38 : x
  2. Step 2: Convert to fraction form
    1,349.41/1,857.96 = 1,226.38/x
  3. Step 3: Cross multiply
    1,349.41x = 1,857.96 × 1,226.38
  4. Step 4: Simplify right side
    1,349.41x = 2,278,564.98
  5. Step 5: Solve for x
    x = 2,278,564.98/1,349.41
  6. Step 6: Final answer
    x = 1,688.56

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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.