Home / 2,831.76-4,244.40-1,272.96

Finding the Fourth Proportional to 2,831.76, 4,244.40 and 1,272.96

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Solution

The fourth proportional to 2,831.76, 4,244.40 and 1,272.96 is: 1,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.76 : 4,244.40 = 1,272.96 : x
  2. Step 2: Convert to fraction form
    2,831.76/4,244.40 = 1,272.96/x
  3. Step 3: Cross multiply
    2,831.76x = 4,244.40 × 1,272.96
  4. Step 4: Simplify right side
    2,831.76x = 5,402,951.42
  5. Step 5: Solve for x
    x = 5,402,951.42/2,831.76
  6. Step 6: Final answer
    x = 1,907.98

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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.