Home / 5,291.52-7,940.48-1,831.20

Finding the Fourth Proportional to 5,291.52, 7,940.48 and 1,831.20

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Solution

The fourth proportional to 5,291.52, 7,940.48 and 1,831.20 is: 2,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.52 : 7,940.48 = 1,831.20 : x
  2. Step 2: Convert to fraction form
    5,291.52/7,940.48 = 1,831.20/x
  3. Step 3: Cross multiply
    5,291.52x = 7,940.48 × 1,831.20
  4. Step 4: Simplify right side
    5,291.52x = 14,540,606.98
  5. Step 5: Solve for x
    x = 14,540,606.98/5,291.52
  6. Step 6: Final answer
    x = 2,747.91

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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.