Home / 6,455.34-9,682.78-1,838.34

Finding the Fourth Proportional to 6,455.34, 9,682.78 and 1,838.34

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Solution

The fourth proportional to 6,455.34, 9,682.78 and 1,838.34 is: 2,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.34 : 9,682.78 = 1,838.34 : x
  2. Step 2: Convert to fraction form
    6,455.34/9,682.78 = 1,838.34/x
  3. Step 3: Cross multiply
    6,455.34x = 9,682.78 × 1,838.34
  4. Step 4: Simplify right side
    6,455.34x = 17,800,241.79
  5. Step 5: Solve for x
    x = 17,800,241.79/6,455.34
  6. Step 6: Final answer
    x = 2,757.44

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1.5x scale

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.