Home / 7,881.45-11,821.06-2,335.38

Finding the Fourth Proportional to 7,881.45, 11,821.06 and 2,335.38

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Solution

The fourth proportional to 7,881.45, 11,821.06 and 2,335.38 is: 3,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.45 : 11,821.06 = 2,335.38 : x
  2. Step 2: Convert to fraction form
    7,881.45/11,821.06 = 2,335.38/x
  3. Step 3: Cross multiply
    7,881.45x = 11,821.06 × 2,335.38
  4. Step 4: Simplify right side
    7,881.45x = 27,606,667.10
  5. Step 5: Solve for x
    x = 27,606,667.10/7,881.45
  6. Step 6: Final answer
    x = 3,502.74

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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.