Home / 5,311.84-7,961.75-2,675.16

Finding the Fourth Proportional to 5,311.84, 7,961.75 and 2,675.16

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Solution

The fourth proportional to 5,311.84, 7,961.75 and 2,675.16 is: 4,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.84 : 7,961.75 = 2,675.16 : x
  2. Step 2: Convert to fraction form
    5,311.84/7,961.75 = 2,675.16/x
  3. Step 3: Cross multiply
    5,311.84x = 7,961.75 × 2,675.16
  4. Step 4: Simplify right side
    5,311.84x = 21,298,955.13
  5. Step 5: Solve for x
    x = 21,298,955.13/5,311.84
  6. Step 6: Final answer
    x = 4,009.71

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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.