Home / 7,763.28-11,645.76-2,831.76

Finding the Fourth Proportional to 7,763.28, 11,645.76 and 2,831.76

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Solution

The fourth proportional to 7,763.28, 11,645.76 and 2,831.76 is: 4,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.28 : 11,645.76 = 2,831.76 : x
  2. Step 2: Convert to fraction form
    7,763.28/11,645.76 = 2,831.76/x
  3. Step 3: Cross multiply
    7,763.28x = 11,645.76 × 2,831.76
  4. Step 4: Simplify right side
    7,763.28x = 32,977,997.34
  5. Step 5: Solve for x
    x = 32,977,997.34/7,763.28
  6. Step 6: Final answer
    x = 4,247.95

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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.