Home / 7,944.84-11,918.16-2,101.91

Finding the Fourth Proportional to 7,944.84, 11,918.16 and 2,101.91

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Solution

The fourth proportional to 7,944.84, 11,918.16 and 2,101.91 is: 3,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.84 : 11,918.16 = 2,101.91 : x
  2. Step 2: Convert to fraction form
    7,944.84/11,918.16 = 2,101.91/x
  3. Step 3: Cross multiply
    7,944.84x = 11,918.16 × 2,101.91
  4. Step 4: Simplify right side
    7,944.84x = 25,050,840.09
  5. Step 5: Solve for x
    x = 25,050,840.09/7,944.84
  6. Step 6: Final answer
    x = 3,153.10

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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.