Home / 1,338.96-2,011.52-949.93

Finding the Fourth Proportional to 1,338.96, 2,011.52 and 949.93

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Solution

The fourth proportional to 1,338.96, 2,011.52 and 949.93 is: 1,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.96 : 2,011.52 = 949.93 : x
  2. Step 2: Convert to fraction form
    1,338.96/2,011.52 = 949.93/x
  3. Step 3: Cross multiply
    1,338.96x = 2,011.52 × 949.93
  4. Step 4: Simplify right side
    1,338.96x = 1,910,800.54
  5. Step 5: Solve for x
    x = 1,910,800.54/1,338.96
  6. Step 6: Final answer
    x = 1,427.08

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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.