Home / 4,911.12-7,359.48-2,831.76

Finding the Fourth Proportional to 4,911.12, 7,359.48 and 2,831.76

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Solution

The fourth proportional to 4,911.12, 7,359.48 and 2,831.76 is: 4,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.12 : 7,359.48 = 2,831.76 : x
  2. Step 2: Convert to fraction form
    4,911.12/7,359.48 = 2,831.76/x
  3. Step 3: Cross multiply
    4,911.12x = 7,359.48 × 2,831.76
  4. Step 4: Simplify right side
    4,911.12x = 20,840,281.08
  5. Step 5: Solve for x
    x = 20,840,281.08/4,911.12
  6. Step 6: Final answer
    x = 4,243.49

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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.