Home / 6,878.67-10,308.28-3,418.35

Finding the Fourth Proportional to 6,878.67, 10,308.28 and 3,418.35

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Solution

The fourth proportional to 6,878.67, 10,308.28 and 3,418.35 is: 5,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.67 : 10,308.28 = 3,418.35 : x
  2. Step 2: Convert to fraction form
    6,878.67/10,308.28 = 3,418.35/x
  3. Step 3: Cross multiply
    6,878.67x = 10,308.28 × 3,418.35
  4. Step 4: Simplify right side
    6,878.67x = 35,237,308.94
  5. Step 5: Solve for x
    x = 35,237,308.94/6,878.67
  6. Step 6: Final answer
    x = 5,122.69

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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.