Home / 1,265.06-1,896.44-442.89

Finding the Fourth Proportional to 1,265.06, 1,896.44 and 442.89

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Solution

The fourth proportional to 1,265.06, 1,896.44 and 442.89 is: 663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.06 : 1,896.44 = 442.89 : x
  2. Step 2: Convert to fraction form
    1,265.06/1,896.44 = 442.89/x
  3. Step 3: Cross multiply
    1,265.06x = 1,896.44 × 442.89
  4. Step 4: Simplify right side
    1,265.06x = 839,907.83
  5. Step 5: Solve for x
    x = 839,907.83/1,265.06
  6. Step 6: Final answer
    x = 663.93

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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.