Home / 7,881.42-11,822.34-2,334.85

Finding the Fourth Proportional to 7,881.42, 11,822.34 and 2,334.85

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Solution

The fourth proportional to 7,881.42, 11,822.34 and 2,334.85 is: 3,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.42 : 11,822.34 = 2,334.85 : x
  2. Step 2: Convert to fraction form
    7,881.42/11,822.34 = 2,334.85/x
  3. Step 3: Cross multiply
    7,881.42x = 11,822.34 × 2,334.85
  4. Step 4: Simplify right side
    7,881.42x = 27,603,390.55
  5. Step 5: Solve for x
    x = 27,603,390.55/7,881.42
  6. Step 6: Final answer
    x = 3,502.34

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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.