Home / 7,887.68-11,831.05-2,956.91

Finding the Fourth Proportional to 7,887.68, 11,831.05 and 2,956.91

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Solution

The fourth proportional to 7,887.68, 11,831.05 and 2,956.91 is: 4,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.68 : 11,831.05 = 2,956.91 : x
  2. Step 2: Convert to fraction form
    7,887.68/11,831.05 = 2,956.91/x
  3. Step 3: Cross multiply
    7,887.68x = 11,831.05 × 2,956.91
  4. Step 4: Simplify right side
    7,887.68x = 34,983,350.06
  5. Step 5: Solve for x
    x = 34,983,350.06/7,887.68
  6. Step 6: Final answer
    x = 4,435.19

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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.