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Finding the Third Proportional to 1,831.36 and 2,919.16

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Solution

The third proportional to 1,831.36 and 2,919.16 is: 4,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.36 : 2,919.16 = 2,919.16 : x
  2. Step 2: Convert to fraction form
    1,831.36/2,919.16 = 2,919.16/x
  3. Step 3: Cross multiply
    1,831.36x = 2,919.16 × 2,919.16
  4. Step 4: Simplify right side
    1,831.36x = 8,521,518.82
  5. Step 5: Solve for x
    x = 8,521,518.82/1,831.36
  6. Step 6: Final answer
    x = 4,653.11

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.