Home / 6,862.15-9,469.68-3,878.96

Finding the Fourth Proportional to 6,862.15, 9,469.68 and 3,878.96

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Solution

The fourth proportional to 6,862.15, 9,469.68 and 3,878.96 is: 5,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.15 : 9,469.68 = 3,878.96 : x
  2. Step 2: Convert to fraction form
    6,862.15/9,469.68 = 3,878.96/x
  3. Step 3: Cross multiply
    6,862.15x = 9,469.68 × 3,878.96
  4. Step 4: Simplify right side
    6,862.15x = 36,732,448.04
  5. Step 5: Solve for x
    x = 36,732,448.04/6,862.15
  6. Step 6: Final answer
    x = 5,352.91

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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.