Home / 6,890.84-9,509.29-3,747.02

Finding the Fourth Proportional to 6,890.84, 9,509.29 and 3,747.02

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Solution

The fourth proportional to 6,890.84, 9,509.29 and 3,747.02 is: 5,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.84 : 9,509.29 = 3,747.02 : x
  2. Step 2: Convert to fraction form
    6,890.84/9,509.29 = 3,747.02/x
  3. Step 3: Cross multiply
    6,890.84x = 9,509.29 × 3,747.02
  4. Step 4: Simplify right side
    6,890.84x = 35,631,481.08
  5. Step 5: Solve for x
    x = 35,631,481.08/6,890.84
  6. Step 6: Final answer
    x = 5,170.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.