Home / 1,961.67-2,935.45-1,440.37

Finding the Fourth Proportional to 1,961.67, 2,935.45 and 1,440.37

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Solution

The fourth proportional to 1,961.67, 2,935.45 and 1,440.37 is: 2,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.67 : 2,935.45 = 1,440.37 : x
  2. Step 2: Convert to fraction form
    1,961.67/2,935.45 = 1,440.37/x
  3. Step 3: Cross multiply
    1,961.67x = 2,935.45 × 1,440.37
  4. Step 4: Simplify right side
    1,961.67x = 4,228,139.69
  5. Step 5: Solve for x
    x = 4,228,139.69/1,961.67
  6. Step 6: Final answer
    x = 2,155.38

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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.