Home / 1,930.31-2,663.85-1,046.12

Finding the Fourth Proportional to 1,930.31, 2,663.85 and 1,046.12

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Solution

The fourth proportional to 1,930.31, 2,663.85 and 1,046.12 is: 1,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.31 : 2,663.85 = 1,046.12 : x
  2. Step 2: Convert to fraction form
    1,930.31/2,663.85 = 1,046.12/x
  3. Step 3: Cross multiply
    1,930.31x = 2,663.85 × 1,046.12
  4. Step 4: Simplify right side
    1,930.31x = 2,786,706.76
  5. Step 5: Solve for x
    x = 2,786,706.76/1,930.31
  6. Step 6: Final answer
    x = 1,443.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.