Home / 2,651.38-3,976.92-802.48

Finding the Fourth Proportional to 2,651.38, 3,976.92 and 802.48

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Solution

The fourth proportional to 2,651.38, 3,976.92 and 802.48 is: 1,203.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.38 : 3,976.92 = 802.48 : x
  2. Step 2: Convert to fraction form
    2,651.38/3,976.92 = 802.48/x
  3. Step 3: Cross multiply
    2,651.38x = 3,976.92 × 802.48
  4. Step 4: Simplify right side
    2,651.38x = 3,191,398.76
  5. Step 5: Solve for x
    x = 3,191,398.76/2,651.38
  6. Step 6: Final answer
    x = 1,203.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.