Home / 6,982.88-10,475.68-3,087.28

Finding the Fourth Proportional to 6,982.88, 10,475.68 and 3,087.28

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Solution

The fourth proportional to 6,982.88, 10,475.68 and 3,087.28 is: 4,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,982.88 : 10,475.68 = 3,087.28 : x
  2. Step 2: Convert to fraction form
    6,982.88/10,475.68 = 3,087.28/x
  3. Step 3: Cross multiply
    6,982.88x = 10,475.68 × 3,087.28
  4. Step 4: Simplify right side
    6,982.88x = 32,341,368.52
  5. Step 5: Solve for x
    x = 32,341,368.52/6,982.88
  6. Step 6: Final answer
    x = 4,631.53

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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.