Home / 5,230.76-7,844.92-1,945.40

Finding the Fourth Proportional to 5,230.76, 7,844.92 and 1,945.40

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Solution

The fourth proportional to 5,230.76, 7,844.92 and 1,945.40 is: 2,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.76 : 7,844.92 = 1,945.40 : x
  2. Step 2: Convert to fraction form
    5,230.76/7,844.92 = 1,945.40/x
  3. Step 3: Cross multiply
    5,230.76x = 7,844.92 × 1,945.40
  4. Step 4: Simplify right side
    5,230.76x = 15,261,463.28
  5. Step 5: Solve for x
    x = 15,261,463.28/5,230.76
  6. Step 6: Final answer
    x = 2,917.64

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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.