Home / 7,887.84-11,833.61-2,622.66

Finding the Fourth Proportional to 7,887.84, 11,833.61 and 2,622.66

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Solution

The fourth proportional to 7,887.84, 11,833.61 and 2,622.66 is: 3,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.84 : 11,833.61 = 2,622.66 : x
  2. Step 2: Convert to fraction form
    7,887.84/11,833.61 = 2,622.66/x
  3. Step 3: Cross multiply
    7,887.84x = 11,833.61 × 2,622.66
  4. Step 4: Simplify right side
    7,887.84x = 31,035,522.49
  5. Step 5: Solve for x
    x = 31,035,522.49/7,887.84
  6. Step 6: Final answer
    x = 3,934.60

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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.