Home / 1,072.27-1,485.47-1,046.76

Finding the Fourth Proportional to 1,072.27, 1,485.47 and 1,046.76

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Solution

The fourth proportional to 1,072.27, 1,485.47 and 1,046.76 is: 1,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.27 : 1,485.47 = 1,046.76 : x
  2. Step 2: Convert to fraction form
    1,072.27/1,485.47 = 1,046.76/x
  3. Step 3: Cross multiply
    1,072.27x = 1,485.47 × 1,046.76
  4. Step 4: Simplify right side
    1,072.27x = 1,554,927.62
  5. Step 5: Solve for x
    x = 1,554,927.62/1,072.27
  6. Step 6: Final answer
    x = 1,450.13

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.