Home / 1,930.14-2,663.56-1,231.92

Finding the Fourth Proportional to 1,930.14, 2,663.56 and 1,231.92

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Solution

The fourth proportional to 1,930.14, 2,663.56 and 1,231.92 is: 1,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.14 : 2,663.56 = 1,231.92 : x
  2. Step 2: Convert to fraction form
    1,930.14/2,663.56 = 1,231.92/x
  3. Step 3: Cross multiply
    1,930.14x = 2,663.56 × 1,231.92
  4. Step 4: Simplify right side
    1,930.14x = 3,281,292.84
  5. Step 5: Solve for x
    x = 3,281,292.84/1,930.14
  6. Step 6: Final answer
    x = 1,700.03

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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.