Home / 2,842.70-3,923.30-1,663.76

Finding the Fourth Proportional to 2,842.70, 3,923.30 and 1,663.76

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Solution

The fourth proportional to 2,842.70, 3,923.30 and 1,663.76 is: 2,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.70 : 3,923.30 = 1,663.76 : x
  2. Step 2: Convert to fraction form
    2,842.70/3,923.30 = 1,663.76/x
  3. Step 3: Cross multiply
    2,842.70x = 3,923.30 × 1,663.76
  4. Step 4: Simplify right side
    2,842.70x = 6,527,443.58
  5. Step 5: Solve for x
    x = 6,527,443.58/2,842.70
  6. Step 6: Final answer
    x = 2,296.22

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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.