Home / 6,862.34-9,469.94-3,878.12

Finding the Fourth Proportional to 6,862.34, 9,469.94 and 3,878.12

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Solution

The fourth proportional to 6,862.34, 9,469.94 and 3,878.12 is: 5,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.34 : 9,469.94 = 3,878.12 : x
  2. Step 2: Convert to fraction form
    6,862.34/9,469.94 = 3,878.12/x
  3. Step 3: Cross multiply
    6,862.34x = 9,469.94 × 3,878.12
  4. Step 4: Simplify right side
    6,862.34x = 36,725,563.71
  5. Step 5: Solve for x
    x = 36,725,563.71/6,862.34
  6. Step 6: Final answer
    x = 5,351.76

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1.5x scale

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.