Home / 1,831.72-2,746.94-1,137.32

Finding the Fourth Proportional to 1,831.72, 2,746.94 and 1,137.32

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Solution

The fourth proportional to 1,831.72, 2,746.94 and 1,137.32 is: 1,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.72 : 2,746.94 = 1,137.32 : x
  2. Step 2: Convert to fraction form
    1,831.72/2,746.94 = 1,137.32/x
  3. Step 3: Cross multiply
    1,831.72x = 2,746.94 × 1,137.32
  4. Step 4: Simplify right side
    1,831.72x = 3,124,149.80
  5. Step 5: Solve for x
    x = 3,124,149.80/1,831.72
  6. Step 6: Final answer
    x = 1,705.58

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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.