Home / 2,831.88-4,238.64-1,738.44

Finding the Fourth Proportional to 2,831.88, 4,238.64 and 1,738.44

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Solution

The fourth proportional to 2,831.88, 4,238.64 and 1,738.44 is: 2,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.88 : 4,238.64 = 1,738.44 : x
  2. Step 2: Convert to fraction form
    2,831.88/4,238.64 = 1,738.44/x
  3. Step 3: Cross multiply
    2,831.88x = 4,238.64 × 1,738.44
  4. Step 4: Simplify right side
    2,831.88x = 7,368,621.32
  5. Step 5: Solve for x
    x = 7,368,621.32/2,831.88
  6. Step 6: Final answer
    x = 2,602.02

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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.