Home / 2,490.82-3,731.37-1,831.48

Finding the Fourth Proportional to 2,490.82, 3,731.37 and 1,831.48

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Solution

The fourth proportional to 2,490.82, 3,731.37 and 1,831.48 is: 2,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.82 : 3,731.37 = 1,831.48 : x
  2. Step 2: Convert to fraction form
    2,490.82/3,731.37 = 1,831.48/x
  3. Step 3: Cross multiply
    2,490.82x = 3,731.37 × 1,831.48
  4. Step 4: Simplify right side
    2,490.82x = 6,833,929.53
  5. Step 5: Solve for x
    x = 6,833,929.53/2,490.82
  6. Step 6: Final answer
    x = 2,743.65

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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.