Home / 1,391.67-2,094.49-1,046.79

Finding the Fourth Proportional to 1,391.67, 2,094.49 and 1,046.79

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Solution

The fourth proportional to 1,391.67, 2,094.49 and 1,046.79 is: 1,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.67 : 2,094.49 = 1,046.79 : x
  2. Step 2: Convert to fraction form
    1,391.67/2,094.49 = 1,046.79/x
  3. Step 3: Cross multiply
    1,391.67x = 2,094.49 × 1,046.79
  4. Step 4: Simplify right side
    1,391.67x = 2,192,491.19
  5. Step 5: Solve for x
    x = 2,192,491.19/1,391.67
  6. Step 6: Final answer
    x = 1,575.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.